Note Before using this information and the product it supports, be sure to read the general information under "Safety information" on page v and "Notices" on page 41. First Edition (January 2000) The following paragraph does not apply in the United Kingdom or any other country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimers of express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes in the products or the programs described in this publication at any time. Requests for technical information about IBM products should be made to your IBM Authorized Dealer or your IBM Marketing Representative. © Copyright International Business Machines Corporation 2000. All rights reserved. Note to U.S. Government Users ­ Documentation related to restricted rights ­ Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp. Contents Safety information .... Laser compliance statement ...................... .................... ........... ........... .......... .......... .......... ......... v viii xi xi xiii xiii xiv xiv 1 2 4 6 7 9 10 10 10 11 11 12 12 12 13 13 13 14 15 16 16 19 20 20 22 25 27 27 28 Handling the ThinkPad computer . . . . . . ThinkPad don'ts . . . . . . . . . . . . . . . . ThinkPad do's . . . . . . . . . . . . . . . . . Cleaning your computer . . . . . . . . . . . Carrying your computer ........... Extending the life of your computer's battery Chapter 1. System overview Features . . . . . . . . . . . . Specifications . . . . . . . . . Using your online user's guide Starting BIOS Setup Utility . .................... ..................... ..................... .................... ..................... .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. ............ ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. Chapter 2. Protecting your computer Using password . . . . . . . . . . . . . . Power-on password . . . . . . . . . . ....... Screen saver password Hard-disk passwords . . . . . . . . . Windows password . . . . . . . . . . Supervisor password . . . . . . . . . Network password . . . . . . . . . . . Passwords and standby mode . . . . Using the locks and the security screw Attaching the mechanical lock . . . . Using the security screw . . . . . . . Using the Asset RF ID feature . . . . . Chapter 3. Solving computer problems Troubleshooting . . . . . . . . . . . . . . . Error codes or messages ....... No error codes or messages ..... A power switch problem . . . . . . . . Input problems . . . . . . . . . . . . . . Standby or hibernation problems . . . LCD problems . . . . . . . . . . . . . . Battery problems ............ Hard-disk-drive problems . . . . . . . . Software problems ........... © Copyright IBM Corp. 2000 iii Other problems . . . . . . . . . . . . Testing your computer . . . . . . . . . . Backing up your system . . . . . . . . . Backing up your system configuration Backing up your data . . . . . . . . . Recovering lost or damaged software Getting service . . . . . . . . . . . . . . ThinkPad Web site . . . . . . . . . . Recording sheets . . . . . . . . . . . .............. .............. .............. ............. .............. ............. .............. .............. .............. .......... .......... .......... .......... .......... .......... .......... .......... .......... 29 30 30 30 31 32 35 36 37 39 41 41 42 43 45 47 49 49 Appendix A. Product warranty and notices Notices . . . . . . . . . . . . . . . . . . . . . . . Year 2000 readiness and instructions . . . Trademarks .................. ......... Electronic emission notices Telecommunication notices ......... Industry Canada requirements . . . . . . . . Product notice requirements . . . . . . . . . Notice for European Union countries . . . . iv IBM ThinkPad A20 User's Reference Safety information Note: In the U.K., by law: The telephone line cable must be connected after the power cord. The power cord must be disconnected after the telephone line cable. DANGER Electric current from power, telephone, and communication cables is hazardous. To avoid shock hazard, connect and disconnect cables as shown below when installing, moving, or opening the covers of this product or attached devices. The 3-pin power cord must be used with a properly grounded outlet. To Connect Turn everything OFF. To Disconnect Turn everything OFF. First, attach all cables to devices. First, remove the power cord from the outlet. Remove signal cables from receptacles. Attach the signal cables to receptacles. Remove all cables from devices. Attach the power cord to an outlet. Turn the device ON. © Copyright IBM Corp. 2000 v DANGER Reduce the risk of fire and electric shock by always following basic safety precautions, including the following: Do not use your computer in or near water. During electrical storms: ­ Do not use your computer with the telephone cable connection. ­ Do not connect the cable to or disconnect it from the telephone outlet on the wall. DANGER If the rechargeable battery pack is incorrectly replaced, there is danger of an explosion. The battery pack contains a small amount of harmful substances. To avoid possible injury: Replace only with a battery of the type recommended by IBM, or an equivalent. Keep the battery pack away from fire. Do not expose it to water or rain. Do not attempt to disassemble it. Do not short-circuit it. Keep it away from children. Do not put the battery pack in trash that is disposed of in landfills. When disposing of the battery, comply with local ordinances or regulations and your company's safety standards. In the United States, call IBM at 1-800-IBM-4333 for information on disposal. vi IBM ThinkPad A20 User's Reference DANGER There is a danger of an explosion if the backup battery is incorrectly replaced. The lithium battery (IBM P/N 02K6541 UL-recognized component [file no. MH12210]) contains lithium and can explode if it is not properly handled or disposed of. Replace only with a battery of the same type. To avoid possible injury or death, do not: (1) throw or immerse the batter into water, (2) allow it to heat to more than 100 °C (212 °F), or (3) attempt to repair or disassemble it. Dispose of it as required by local ordinances or regulations and your company's safety standards. CAUTION: The fluorescent lamp in the liquid crystal display (LCD) contains mercury. Do not put it in trash that is disposed of in landfills. Dispose of it as required by local ordinances or regulations. The LCD is made of glass, and rough handling or dropping the computer can cause the LCD to break. If the LCD breaks and the internal fluid gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes; if any symptoms are present after washing, get medical care. CAUTION: To reduce the risk of fire, use only No. 26 AWG or larger (thicker) telephone cable. Safety information vii Laser compliance statement The CD-ROM or DVD drive, which can be installed in the IBM ThinkPad A20, is a laser product. The drive's classification label (shown below) is on the surface of the drive. CLASS 1 LASER PRODUCT LASER KLASSE 1 LUOKAN 1 LASERLAITE APPAREIL A LASER DE CLASSE 1 KLASS 1 LASER APPARAT The drive is certified in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class I laser products. In other countries, the drive is certified to conform to the requirements of EN60825. DANGER Do not open the CD-ROM or DVD drive unit; no user adjustments or serviceable parts are inside. Use of controls, adjustments, or the performance of procedures other than those specified might result in hazardous radiation exposure. Class 1 laser products are not considered hazardous. The design of the laser system and the CD-ROM or DVD-ROM drive ensures that there is no exposure to laser radiation above a Class 1 level during normal operation, user maintenance, or servicing. viii IBM ThinkPad A20 User's Reference Some drives contain an embedded Class 3A laser diode. Note this warning: DANGER Emits visible and invisible laser radiation when open. Avoid direct eye exposure. Do not stare into the beam or view it directly with optical instruments. Safety information ix x IBM ThinkPad A20 User's Reference Handling the ThinkPad computer By using common sense and by following these handling tips, you will get the most use and enjoyment out of your computer for a long time to come. This section provides tips for handling notebook computers in general. Some descriptions might not suit your situation. Check your shipping checklist to confirm the items you get with your computer. Notebook computers are precision machines that require careful handling. Though your computer is designed and tested to be a durable notebook computer that functions reliably in normal work environments, you need to use some common sense in handling it. ThinkPad don'ts Do not subject your computer to physical punishment, such as dropping or bumping. Do not place heavy objects on your computer. Do not spill or allow liquids into your computer. Do not use your computer in or near water (to avoid the danger of electrical shock). Do not pack your computer in a tightly packed suitcase or bag. Your LCD might be damaged. A scratchlike marking on your LCD might be a stain transferred from the keyboard (including from the TrackPoint stick) when the cover was pressed from the outside. Wipe such a stain gently with a dry soft cloth. If the stain remains, moisten the cloth with LCD cleaner and wipe the stain again. Be sure to dry the LCD before closing it. Do not disassemble your computer. Only an authorized IBM ThinkPad repair technician should disassemble and repair your computer. Do not scratch, twist, hit, or push the surface of your computer display. Do not place any objects between the display and the keyboard or under the keyboard. Do not pick up or hold your computer by the display. When picking up your open computer, hold it by the bottom (keyboard) half. © Copyright IBM Corp. 2000 xi Do not modify or tape the latches to keep the display open or closed. Do not turn your computer over while the ac adapter is plugged in. This could break the adapter plug. Do not move the computer when the hard disk drive is accessing data (when the indicator is blinking). Do not use or store your computer where the temperature is below 5° C or above 35° C (41° F and 95° F). Do not place your computer closer than 13 cm (5 in.) to any electrical appliance that generates a strong magnetic field, such as a motor, a magnet, a TV, a refrigerator, or large audio speakers. Do not put an operating cellular phone on the computer. The phone might cause a computer system malfunction. Do not hard-mount your computer in a vehicle or anywhere that it is subject to strong vibration. Do not crush, drop, or physically punish the external or removable hard disk, diskette, or CD-ROM drive when it is outside your computer. Do not press on the middle part of the diskette drive or the CD-ROM drive. Do not insert a diskette at an angle. Not inserting the diskette straight into the drive can damage the drive. Do not place more than one label on a diskette, and do not allow the label to be loose. Multiple or loose labels can detach or tear and then lodge in the drive. Do not touch the lens on the CD-ROM tray. Do not close the CD-ROM tray until you hear the CD-ROM click into the center pivot of the CD-ROM drive. Do not touch the surface of a compact disc; handle the compact disc only by its edges. Do not connect the modem to a PBX (private branch exchange) or other digital telephone extension line. Your computer can use only a public-switched telephone network (PSTN). Use of a phone line other than PSTN can damage your modem. If you are not sure which kind of phone line you are using, contact your telephone company. Many hotels or office buildings use digital telephone extension lines, so check before connecting the telephone cable in such places. Do not leave the base of your computer in contact with your lap or any part of your body for an extended period when the xii IBM ThinkPad A20 User's Reference computer is functioning or when the battery is charging. Your computer dissipates some heat during normal operation. This heat is a function of the level of system activity and battery charge level. Extended contact with your body, even through clothing, could cause discomfort or, eventually, a skin burn. ThinkPad do's Treat your computer like precision electronic machinery. When installing your hard disk, diskette, or CD-ROM drive, follow the instructions in this online book and apply pressure only where needed on the device. When installing the CD-ROM or diskette drive into the UltraslimBay, make sure the ac adapter is disconnected from your computer. If you exchange drives in your computer, reinstall the plastic bezel faces (if supplied). Store your external and removable hard disk, diskette, and CD-ROM drives in the appropriate container or packaging when they are not being used. Choose a quality carrying case that will protect your computer. Store packing materials safely out of reach of children to prevent the risk of suffocation from plastic bags. Register your ThinkPad products with IBM (refer to the Web pages: http://www.pc.ibm.com/register). This can help authorities return your computer to you if it is lost or stolen. Registering your computer also enables IBM to notify you about possible upgrades. Check the IBM Web pages (http://www.ibm.com/thinkpad) periodically to get current information about your computer. Cleaning your computer Occasionally clean your computer as follows: Use a soft cloth moistened with nonalkaline detergent to wipe the exterior of the computer. Don't spray cleaner directly on the display or keyboard. Gently wipe the LCD with a dry, soft cloth. Handling the ThinkPad computer xiii Carrying your computer When carrying your computer, follow these instructions to prevent possible damage to your computer and data: 1. Remove any media from the CD-ROM drive or diskette drive. 2. Turn off all attached devices. 3. Power off the computer, or enter suspend or hibernation mode; then close the LCD. Make sure the suspend indicator is on when the computer is in suspend mode, or the power indicator is off when it is powered off or in hibernation mode. 4. Unplug all external cables and cords connected to your computer. 5. Make sure all computer doors and covers are closed. 6. Use a quality carrying case that provides adequate cushion and protection. Do not move the computer when the hard disk drive is accessing data--that is, when the indicator is blinking. Make sure the indicator is off before you carry the computer. Extending the life of your computer's battery The amount of battery power consumed by your computer depends on such conditions as the frequency of use, the operating temperature, and the period in storage (if unused). The following tips can help you to extend the life of your battery: Do not recharge the battery pack until all of its power is used. Recharging a battery pack that is not completely discharged can shorten battery life. Once you start charging the battery pack, do not use it until it is fully charged. Whenever possible, use the ThinkPad battery power-saving modes: ­ Screen blank ­ Standby ­ Hibernation For more information, refer to the online user's guide: Decrease the LCD brightness. Use power management. Each operating system comes with its own power management. xiv IBM ThinkPad A20 User's Reference If the internal serial devices--the modem, the serial port, and the infrared port--are not in use, stop the supply of power to them. If you will not be using the computer for a long period, remove the battery pack and keep it in a cool place. Handling the ThinkPad computer xv xvi IBM ThinkPad A20 User's Reference Chapter 1. System overview Features . . . . . . . . . . . . Specifications . . . . . . . . . Using your online user's guide Starting BIOS Setup Utility . ..................... ..................... .................... ..................... 2 4 6 7 © Copyright IBM Corp. 2000 1 Features and specifications Features Processor Intel® Mobile Pentium® III processor or Intel® CeleronTM processor Memory Built-in: 64 MB or 128 MB Maximum: 320 MB or 384 MB Storage device 2.5-inch hard disk drive Display The color display uses TFT technology: Resolution: ­ LCD: Up to 1400-by-1050, depending on the model ­ External monitor: Up to 1600-by-1200 ­ Brightness control Keyboard 84-key, 85-key, or 89-key TrackPoint Fn key function 2 IBM ThinkPad A20 User's Reference Features and specifications Diskette drive To get the best performance from your diskette drives, use high-quality diskettes (such as IBM diskettes) that meet or exceed the following standards: 1-MB, 3.5-inch, unformatted diskette: ­ ANSI (American National Standards Institute) X3.137 ­ ISO (International Standards Organization) 8860 ­ ECMA (European Computer Manufacturers Association) 100 2-MB, 3.5-inch, unformatted diskette: ­ ANSI X3.171 ­ ISO 9529 ­ ECMA 125 External interface Serial connector (EIA-RS232D) Parallel connector (IEEE 1284A) External input-device connector External-monitor connector Expansion connector PC Card slots (two Type I or Type II PC Cards, or one Type III PC Card) Headphone jack Line-in jack Microphone jack Infrared port Universal serial bus (USB) connector Telephone connector Ethernet connector (available if the Ethernet Mini-PCI Card or the Combo Mini-PCI Card is installed) UltraPort connector to support an optional IBM digital camera (on some models) Video-in connector (on some models) Video-out connector (on some models) Chapter 1. System overview 3 Specifications Specifications Size 15-inch LCD model: ­ Width: 329 mm (13.0 in.) ­ Depth: 267.5 mm (10.5 in.) ­ Height: 38.1 mm (1.5 in.) to 44.7 mm (1.8 in.) 14.1-inch LCD model: ­ Width: 317 mm (12.5 in.) ­ Depth: 267.5 mm (10.5 in.) ­ Height: 36.7 mm (1.4 in.) to 43.3 mm (1.7 in.) 12.1-inch LCD model: ­ Width: 317 mm (12.5 in.) ­ Depth: 267.5 mm (10.5 in.) ­ Height: 36.7 mm (1.4 in.) to 43.3 mm (1.7 in.) Environment Maximum altitude without pressurization: 3048 m (10,000 ft) Temperature ­ At altitudes up to 2438 m (8000 ft) - Operating with no diskette: 5° to 35°C (41° to 95°F) - Operating with a diskette: 10° to 35°C (50° to 95°F) - Not operating: 5° to 43°C (41° to 109°F) ­ At altitudes above 2438 m (8000 ft) - Maximum operating temperature, 31.3°C (88° F) Note: When you charge the battery pack, its temperature must be at least 10°C (50°F). Relative humidity: ­ Operating with no diskette in the drive: 8% to 95% ­ Operating with a diskette in the drive: 8% to 80% Heat output 56 W (191 Btu/hr) maximum 4 IBM ThinkPad A20 User's Reference Specifications Electrical (ac adapter) Sine-wave input at 50 to 60 Hz Input rating of the ac adapter: 100­240 V ac, 50 to 60 Hz Lithium-ion battery pack A20p model: ­ Nominal voltage: 10.8 V dc ­ Capacity: 5.4 AH Other models: ­ Nominal voltage: 10.8 V dc ­ Capacity: 3.6 AH Chapter 1. System overview 5 Using your online user's guide Using your online user's guide Your computer offers full information and documentation online. There is no need to carry heavy manuals or other reference books. Online help is provided by ThinkPad Assistant. One way you can get access to it is to press the computer's unique ThinkPad Button to open the Access ThinkPad. There, you can do a Quick Search or search the full text of the help system. Alternatively you can go to ThinkPad Assistant by clicking Start Programs ThinkPad Information. ThinkPad Assistant has the following sections: About your ThinkPad Everyday use Communicate Home and travel Enhancements Maintenance and upgrades Security Problem-solving How to reach IBM If you are logged on to the Internet, click one of the Internet portal buttons in Access ThinkPad. Get help and user support rapidly. Update software. Find business solutions. Learn about accessories that can make you even more productive. 6 IBM ThinkPad A20 User's Reference Starting BIOS Setup Utility Starting BIOS Setup Utility Your computer provides a program, called IBM BIOS Setup Utility, that enables you to select various setup parameters. The panels in this utility are as follows: Config: Set the configuration of your computer. Date/Time: Set the date and time. Password: Set a password. Startup: Set the startup device. Restart: Restart the system. Note: You can set parameters more easily by using the ThinkPad Configuration Program. For more information on this program, refer to the online user's guide. To start IBM BIOS Setup Utility, do as follows: 1. To protect yourself against accidental loss of data, use ConfigSafe (see "Backing up your system configuration" on page 30) to save your computer's current configuration. 2. Remove any diskette from the diskette drive, and then turn off the computer. 3. Turn on the computer; then, while the "Press F1 for IBM BIOS Setup Utility" message is displayed at the lower-left area of the screen, press F1. If you have set a supervisor password, the "IBM BIOS Setup Utility" menu appears after you enter the password. You can start the utility by pressing Enter instead of the supervisor password; then, however, you cannot change the parameters that are protected by the supervisor password. For more information, refer to the online user's guide. 4. Using the cursor keys, move to an item you want to change. When the item you want is highlighted, press Enter. A submenu is displayed. 5. Change the items you wish to change. To change the value of an item, use the F5 or F6 key. If the item has a submenu, you can display it by pressing Enter. 6. Press F3 or Esc to exit from the submenu. Chapter 1. System overview 7 Starting BIOS Setup Utility If you are in a nested submenu, press Esc repeatedly until you reach the IBM BIOS Setup Utility menu. Note: If you need to restore the settings to their original state as of the time of purchase, press the F9 key to load the default settings. Also, the Restart submenu offers you such options, as loading the default settings or discarding the changes. 7. Select Restart; then press Enter. Change the option you want; then press Enter. Your computer restarts. 8 IBM ThinkPad A20 User's Reference Chapter 2. Protecting your computer Using password . . . . . . . . . . . . . Power-on password . . . . . . . . . Screen saver password ...... Hard-disk passwords . . . . . . . . Windows password . . . . . . . . . Supervisor password . . . . . . . . Network password . . . . . . . . . . Passwords and standby mode . . . Using the locks and the security screw Attaching the mechanical lock . . . Using the security screw . . . . . . Using the Asset RF ID feature . . . . ............... ............... ............... ............... ............... ............... ............... ............... .............. ............... ............... ............... 10 10 10 11 11 12 12 12 13 13 13 14 © Copyright IBM Corp. 2000 9 Using password Using password To make sure only authorized persons may work on your computer, you can set different kinds of passwords. Then prospective users will have to know the proper passwords in order to access your computer or data. You can set the following passwords in your computer: Power-on password Screen saver password Hard-disk passwords Windows password Supervisor password Network password Power-on password You can set a power-on password to help prevent unauthorized users from starting up your ThinkPad computer. If you set a power-on password, the password prompt appears on the screen whenever you turn on the computer. You must enter the correct password to start using the computer. Note: If you forget your power-on password, you cannot reset it. You must take the computer to an IBM reseller or IBM marketing representative to have the password canceled. To set a power-on password, refer to the online user's guide. Screen saver password You can set a screen saver password. Once the screen saver has started, only those who know the password can close the screen saver and resume operating the computer. Note: The screen saver password does not thoroughly protect your computer against unauthorized users. By turning your computer off and then on again, an unauthorized user could restart Windows without knowing your screen saver password--unless you have also set a power-on password. To set a screen saver password, refer to the online user's guide. 10 IBM ThinkPad A20 User's Reference Using password Hard-disk passwords Two types of hard-disk passwords help protect the information on your hard disk. When either of the hard-disk passwords has been set, the information on your hard disk cannot be accessed without one of the passwords. These are the two types of hard-disk password: User hard-disk password Master hard-disk password--which requires a user password. When a user hard-disk password is set, no one can access files and applications on the hard disk without first typing the password. The master hard-disk password is for use by systems administrators. First set a master password that only the administrator knows. Then set a user password that can be told to the user. The user can change the user password. The master password, like a master key, enables the administrator to access the hard disk even if the user has changed the user password. Attention If you forget your hard-disk password, there is no way to reset your password or recover data from the hard disk. You must take your computer to an IBM reseller or marketing representative to replace the hard-disk drive. A fee will be charged for parts and service. To set a hard-disk password, refer to the online user's guide. Windows password When you start your ThinkPad computer and Windows operating system opens, Windows will require you to enter a user ID and a password. To set a Windows password, refer to the online user's guide. Chapter 2. Protecting your computer 11 Using password Supervisor password The supervisor password protects the system information stored in the IBM BIOS Setup Utility so that, without knowing the password, no one can change the configuration of the computer. Attention If you forget your supervisor password, there is no way to reset it. You must take your computer to an IBM reseller or marketing representative to replace the system board. A fee will be charged for parts and service. To establish a setup password, refer to the online user's guide. Network password If you work on a local area network (LAN) with your ThinkPad computer, your LAN administrator might have set passwords to restrict access to various parts of the network. If you are authorized to access restricted areas of your LAN, you will need to establish a logon password in Windows. To establish your network password in Windows, refer to the online user's guide. Passwords and standby mode If you have set passwords and you put your computer into standby by pressing Fn+F4, you can resume operating the computer by pressing the Fn key. You will be prompted to type your password. To unlock your computer, you must enter a power-on password or a supervisor password (if one is set). If one or more hard disks has a hard-disk password, the disks are unlocked automatically when you resume your computer. For information on hard-disk passwords with a hard disk in a docking station, refer to the online user's guide. 12 IBM ThinkPad A20 User's Reference Using the locks and the security screw Using the locks and the security screw Attaching the mechanical lock You can attach a mechanical lock to your computer, to help prevent it from being removed without your permission. Attach a mechanical lock to the keyhole of the computer; then secure the chain on the lock to a stationary object. Refer to the instructions shipped with the mechanical lock. Note: You are responsible for evaluating, selecting, and implementing the locking devices and security features. IBM makes no comments, judgments, or warranties about the function, quality, or performance of locking devices and security features. Using the security screw The security screw shipped with your computer can help prevent the hard-disk drive from being removed. To replace the coin screw with the security screw, do as follows: 1. Turn off the computer; then disconnect the ac adapter and all cables from the computer. 2. Remove the screw with a coin; then install the security screw, and tighten it with a 2.5-mm allen wrench. 3. Connect the ac adapter; then turn on the computer. Chapter 2. Protecting your computer 13 Using the Asset RF ID feature Using the Asset RF ID feature The Asset ID RF feature, available as an option, contains Asset ID technology, which you can think of as the next generation of bar code technology. This option enables communication between the ThinkPad computer and an industry-standard radio-frequency hand-held device, called a reader hereafter in this manual. The option provides better management, deployment, and security of your ThinkPad computer inventory. After this option is installed in your computer, the reader can recognize the following information: Serial numbers: System board System unit Configuration information: UUID MAC address CPU data DIMM data Diskette drive data IDE device data PCI device data ISA Plug and Play device data LCD panel data Docking station data A reader can also recognize the following user information after it has been set in your computer: User name Telephone number Machine lease data This option can also be used to prevent your computer from being stolen. It is effective only when the supervisor password is set. If you use this option for security, you need to enable RFID security after installing it into your computer. For more information, refer to the online user's guide. 14 IBM ThinkPad A20 User's Reference Chapter 3. Solving computer problems Troubleshooting . . . . . . . . . . . . . . Error codes or messages ...... No error codes or messages .... A power switch problem . . . . . . . Input problems . . . . . . . . . . . . . Standby or hibernation problems . . LCD problems . . . . . . . . . . . . . Battery problems ........... Hard-disk-drive problems . . . . . . . .......... Software problems Other problems . . . . . . . . . . . . Testing your computer . . . . . . . . . . Backing up your system . . . . . . . . . Backing up your system configuration Backing up your data . . . . . . . . . Recovering lost or damaged software Using the Recovery CD . . . . . . Using the Software Selections CD Getting service . . . . . . . . . . . . . . ThinkPad Web site . . . . . . . . . . Recording sheets . . . . . . . . . . . .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. .............. ............. .............. ............. .............. .............. .............. .............. .............. 16 16 19 20 20 22 25 27 27 28 29 30 30 30 31 32 32 33 35 36 37 © Copyright IBM Corp. 2000 15 Hardware troubleshooting Troubleshooting Error codes or messages Note: In the charts, x can represent any character. Message 0175: Bad CRC1, stop POST task 0187: EAIA data access error 0188: Invalid RFID serialization information area or bad CRC2 0189: Invalid RFID configuration information area 0190: Critical low-battery error 0193: RF antenna has been removed 0194: The computer is carried through the security gate 0200: Hard disk error Cause and action The EEPROM checksum is not correct (block # 6). Have the computer serviced. The access to EEPROM has failed. Have the computer serviced. The EEPROM checksum is not correct (block # 0 and 1, or block # 6). The system board should be replaced, and the box serial number needs to be reinstalled. Have the computer serviced. The EEPROM checksum is not correct (blocks # 4 and 5). The system board should be replaced, and the UUID needs to be reinstalled. Have the computer serviced. The computer turned off, because the battery is low. Connect the ac adapter to the computer and charge the battery pack, or replace the battery pack with a fully charged one. The RFID antenna that you installed has been removed. Enter the supervisor password to return your computer to normal operation. The computer has been carried through a security portal gate. Enter the supervisor password to return your computer to the normal operation. The hard disk is not working. Make sure that the hard disk drive is attached firmly. Run the BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7); then make sure that the hard disk drive is not disabled in the Startup menu. 16 IBM ThinkPad A20 User's Reference Hardware troubleshooting Message 021x: Keyboard error Cause and action Make sure that no object is placed on the keyboard or on the external keyboard, if you have one. Turn off the computer, and turn off all attached devices. Turn on the computer first; then turn on the attached devices. If you still see the same error code, do the following: If an external keyboard is connected, do the following: Turn off the computer and disconnect the external keyboard; then turn on the computer. Make sure that your built-in keyboard operates correctly. If it does, have the external keyboard serviced. Make sure that the right connector is being used between the external keyboard and the computer. Test the computer by using PC-Doctor (refer to "Testing your computer" on page 30). If the computer stops during the test, have it serviced. 0220: Monitor type error The monitor type does not match the type specified in CMOS. Run the IBM BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7) to make sure that your monitor type matches the type specified in the utility. The shadow RAM failed. Test your computer's memory with PC-Doctor (refer to "Testing your computer" on page 30). If you added a memory module just before turning the computer on, reinstall it. Then test the memory with PC-Doctor. The system RAM failed. Test your computer's memory with PC-Doctor (refer to "Testing your computer" on page 30). If you added a memory module just before turning the computer on, reinstall it. Then test the memory with PC-Doctor. The extended RAM failed. Test your computer's memory with PC-Doctor (refer to "Testing your computer" on page 30). If you added memory just before turning the computer on, reinstall it. Then test the memory with PC-Doctor. The system battery is dead. Replace the battery and run the BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7) to verify the configuration. If you still have a problem, have the computer serviced. The system CMOS might have been corrupted by an application program. Run the BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7) to reconfigure the settings. If the same error code appears, have the computer serviced. The password you have set is cleared. Run the BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7) to set the password. Have the computer serviced. 0230: Shadow RAM error 0231: System RAM error 0232: Extended RAM error 0250: System battery error 0251: System CMOS checksum bad 0252: Password checksum bad 0260: System timer error Chapter 3. Solving computer problems 17 Hardware troubleshooting Message 0270: Real time clock error 0271: Date and time error Cause and action Have the computer serviced. Neither the date nor the time is set in the computer. Set the date and time, using the IBM BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7). Your computer was unable to complete the boot process. Turn the computer off; then turn it on to start the IBM BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7). Verify the configuration and then restart the computer, either by choosing the Exit Saving Changes option under the Restart item or by pressing F10. If the same error code appears, have the computer serviced. The cache is disabled. Have the computer serviced. Have the computer serviced. Have the computer serviced. Have the computer serviced. Have the computer serviced. A power-on password or a supervisor password is set. Type the password and press Enter to use the computer. If the power-on password is not accepted, a supervisor password might have been set. Type the supervisor password and press Enter. If you still see the same error message, have the computer serviced. A hard-disk password is set. Type the password and press Enter. If you still see the same error message, have the computer serviced. If you use a DOS application that supports only 640×480 resolution (VGA mode), the screen image might look slightly distorted or might appear smaller than the display size. This is to maintain compatibility with other DOS applications. To expand the screen image to the same size as the actual screen, start the ThinkPad Configuration Program (refer to the Online User's Guide) and click LCD; then select the Screen expansion function. (The image might still look slightly distorted.) Note: If your computer has screen expansion function, you can use the Fn+F8 keys to expand the screen image. 0280: Previous boot incomplete 02D0: System cache error 02F4: EISA CMOS not writable 02F5: DMA test failed 02F6: Software NMI failed 02F7: Fail-safe timer NMI failed The power-on password prompt appears. The hard-disk password prompt appears. The DOS full-screen looks smaller. 18 IBM ThinkPad A20 User's Reference Hardware troubleshooting Message Hibernation error Cause and action The system configuration changed between the time your computer entered hibernation mode and the time it left this mode, and your computer cannot resume normal operation. Restore the system configuration to what it was before your computer entered hibernation mode. If the memory size has been changed, re-create the hibernation file. Operating system not found. Verify the following: The hard-disk drive is correctly installed. A startable diskette is in the diskette drive. If the same error message appears, check the boot sequence, using the BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7). Fan error The cooling fan is failing. Have the computer serviced. No error codes or messages Problem The screen is blank and you do not hear any beeps. Note: If you are not sure whether you heard any beeps, turn off the computer; then turn it on again, and listen again. If you are using an external monitor, refer to "External monitor problems" in the online user's guide. Cause and action If a power-on password is set, press any key to display the power-on password prompt, and then type the correct password and press Enter. If the power-on password prompt does not appear, the brightness might be set to minimum brightness. Adjust the brightness level by pressing the Fn+Home key. If the screen still remains blank, make sure that: The battery pack is installed correctly. The ac adapter is connected to the computer and the power cord is plugged into a working electrical outlet. The computer power is on. (Turn on the power switch again for confirmation.) If these items are properly set, and the screen remains blank, have the computer serviced. The screen is blank and you hear two or more beeps, or a continuous beep. If you are using Ethernet: Make sure that the Ethernet cable is connected firmly. Contact your network administrator. If the screen is still blank, and beeps do not stop, have the computer serviced. Chapter 3. Solving computer problems 19 Hardware troubleshooting Problem Only the cursor appears. Cause and action Reinstall your operating system, and turn on the computer. If you still see only the cursor on the screen, have the computer serviced. A power switch problem Problem The system freezes, and you cannot turn off the computer. Cause and action Turn off the computer by pressing and holding the power switch for 4 seconds or more. If the system is still not reset, remove the ac adapter and the battery pack. Input problems Problem The cursor drifts when the computer is turned on or after it resumes normal operation. Cause and action The cursor might drift when you are not using the TrackPoint during normal operation. This is a normal characteristic of the TrackPoint and is not a defect. The cursor may drift for several seconds under the following conditions: When When When When The cursor does not work for a while after the settings in the TrackPoint Properties window have been changed. The mouse or pointing device does not work. the the the the computer is turned on. computer resumes normal operation. TrackPoint is pressed for a long time. temperature changes. This is a normal characteristic of the cursor. Wait several seconds until the cursor returns to the normal state. Make sure that the pointing-device cable is enabled in the ThinkPad Configuration Program. Make sure that the mouse or pointing-device cable is securely connected to the computer. Try using the TrackPoint. If the TrackPoint works, the error may be due to the mouse. If your mouse is incompatible with the IBM PS/2 mouse, disable the TrackPoint, using the ThinkPad Configuration Program. Note: For more information, see the manual supplied with the mouse. 20 IBM ThinkPad A20 User's Reference Hardware troubleshooting Problem The mouse buttons do not work. The scrolling or magnifying glass function does not work. The cursor does not move after the computer returns from one of the power management modes. Some or all keys on the keyboard do not work. Cause and action Change the mouse driver to Standard PS/2 Port Mouse, and then reinstall PS/2 TrackPoint driver. Refer to the Software Selections CD for installing the driver. See the General tab page in Mouse Properties, and make sure that the PS/2 TrackPoint driver is installed. Make sure you followed the instructions correctly when you installed Windows with the power management option. If the problem occurred immediately after the computer returned from standby mode, enter the power-on password if one has been set. If an external keyboard is connected, the numeric keypad on your computer does not work. Use the numeric keypad on the external keyboard. If an external numeric keypad or a mouse is connected: 1. Turn off the computer. 2. Remove the external numeric keypad or the mouse. 3. Turn on the computer and try using the keyboard again. If the keyboard problem is resolved, carefully reconnect the external numeric keypad, external keyboard, or mouse, making sure that you have seated the connectors properly. If keys on the keyboard still do not work, have the computer serviced. A number appears when you type a letter. Some or all keys on the external numeric keypad do not work. Some or all keys on the external keyboard do not work. The numeric lock function is on. To disable it, press and hold Shift; then press NumLk. Make sure that the external numeric keypad is correctly connected to the computer. To use an external keyboard, you need to attach the keyboard/mouse cable to the computer. Make sure that: The keyboard/mouse cable is correctly connected to the computer. The keyboard cable is connected to the correct side of the keyboard/mouse cable. If these connections are correct, disconnect the keyboard/mouse cable from the computer and make sure that the keyboard operates properly. If the built-in keyboard works, there is a problem with either the cable or with the keyboard. Try using a different keyboard/mouse cable or an external keyboard. Chapter 3. Solving computer problems 21 Hardware troubleshooting Standby or hibernation problems Problem The computer enters standby mode automatically. The computer enters standby mode immediately after POST (the standby indicator turns on). The critical low-battery error appears, and the computer immediately turns off. The LCD remains blank after you take action to return from a sleep mode. Cause and action If the processor reaches a temperature that is too high, the computer will automatically enter standby mode to allow the computer to cool and to protect the processor and other internal components. Make sure that: The battery pack is charged. The operating temperature is within the acceptable range. Refer to "Specifications" on page 4. If these items are correct, have the computer serviced. The battery power is getting low. Connect the ac adapter to the computer, or replace the battery pack with a fully charged one. Check whether the external monitor was disconnected while the computer was in standby mode. Do not disconnect the external monitor while the computer is in standby mode or hibernation mode. If no external monitor is attached when the computer resumes, the LCD remains blank and output is not displayed. This restriction does not depend on the resolution value. The computer automatically enters standby or hibernation mode when the battery is depleted. Do one of the following: Replace the battery pack with a fully charged one and press Fn. Connect the ac adapter to the computer, and press Fn. The computer does not return from standby mode, or the standby indicator stays on and the computer does not work. 22 IBM ThinkPad A20 User's Reference Hardware troubleshooting Problem When you are using the port replicator, resuming normal operation from hibernation or standby mode takes a long time. Cause and action If the Ethernet port is enabled, but the port replicator is not connected to a network, resuming operation can take a long time. The computer queries the Ethernet until the timeout timer stops the query. If you want to access the Ethernet, connect the network cable. If you are not using the network, disable the Ethernet connector as follows: For Windows 98: 1. 2. 3. 4. 5. 6. 7. 8. Double-click the System icon in the Control Panel. Click the Device Manager tab. Double-click Network Adapter. Double-click Intel EtherExpress PRO PCI Adapter. Select the Disable in this hardware profile check box. Click OK. Close all windows. Restart the computer. For Windows NT: 1. 2. 3. 4. 5. 6. 7. Your computer does not enter standby or hibernation mode. Double-click the System icon in the Control Panel. Select Intel EtherExpress PRO Adapter, and click Startup.... Select Disabled. Click OK. Click Close. Close all windows. Restart the computer by turning it off and on again. Check whether any option has been selected to disable your computer from entering standby or hibernation mode. Chapter 3. Solving computer problems 23 Hardware troubleshooting Problem The computer does not enter standby mode as set by the timer under Windows 98 or Windows NT. Cause and action For Windows 98: The generic CD-ROM or DVD-ROM driver for Windows 98 accesses the internal CD-ROM drive or DVD-ROM drive every 3 seconds to see whether a CD-ROM is inserted in the CD-ROM drive or the DVD-ROM drive. This prevents your computer from entering standby mode even after a timeout. To prevent this from occurring, do the following: 1. 2. 3. 4. 5. 6. 7. 8. Click Start. Move the cursor to Settings and Control Panel. Click Control Panel, and then double-click System. Click the Device Manager tab. Click the + mark for CD-ROM. Double-click the name of the CD-ROM or DVD-ROM. Click the Settings tab. Clear the Auto insert notification check box. Windows 98 no longer detects a CD-ROM or a DVD-ROM automatically. For Windows NT: If you enable the CD-ROM AutoRun feature, the computer does not enter standby mode through the timer. To enable the timer in this situation, edit the configuration information in the registry as follows: HKEY_LOCAL_MACHINE¥SYSTEM¥ CurrentControlSet¥Services¥Cdrom¥ Autorun: x1 > Autorun: 24 IBM ThinkPad A20 User's Reference Hardware troubleshooting Problem The Fn+F12 key combination does not make the computer enter hibernation mode. Cause and action Enable hibernation mode as follows: For Windows 98: 1. 2. 3. 4. 5. Start the ThinkPad Configuration Program Click Power Management. Click the Hibernation tab. Click the Enable hibernation... button. Click the Create Now button. The computer cannot enter hibernation mode if you are using one of the IBM communication PC Cards. To enter hibernation mode, stop the communication program, and then remove the PC Card or disable the PC Card slot, using the Control Panel. For Windows NT: Note: You must format your hard disk with the FAT format system to use hibernation mode in Windows NT. If you format your hard disk with NTFS, the default format in Windows NT, you cannot use hibernation mode. 1. Start the ThinkPad Configuration Program. 2. Click Power Management. 3. Click Suspend/Resume Options. 4. Click Enable Hibernation. 5. Click OK. The computer cannot enter hibernation mode when you are using one of the IBM communication PC Cards. To enter hibernation mode, stop the communication program, and then remove the PC Card or disable the PC Card slot, using the Control Panel. LCD problems Problem The screen is blank. Cause and action Press Fn+Home to make the screen brighter. If you still have the problem, do the "Cause and action" for the next problem in this list. Chapter 3. Solving computer problems 25 Hardware troubleshooting Problem The screen is unreadable or distorted. Cause and action Make sure that: The device driver for the display is installed correctly. The resolution and color depth are set correctly on the display. The monitor type is correct. To check these settings, do as follows: Open the Display Properties window as follows: 1. Click Start. 2. Move the cursor to Settings and Control Panel. 3. Click Control Panel, and then double-click Display. For Windows 98: 1. Click the Settings tab. 2. Check whether the color depth and resolution are correctly set. 3. Click Advanced.... 4. Click the Adapter tab. 5. Make sure "RAGE MOBILITY-xx AGP" is shown in the Adapter Information window. (xx: changed by the system.) 6. Click the Monitor tab. 7. Make sure the information is correct. For Windows NT: 1. Click the Settings tab. 2. Check whether the color depth and resolution are correctly set. 3. Click Display Type.... 4. Make sure "RAGE MOBILITY-xx AGP" is shown in the Display Type window. (xx: changed by the system.) 5. Click OK. 6. Click the Test button in the Settings window. 7. Make sure the output is displayed correctly. Incorrect characters appear on the screen. The screen stays on even after you turn off your computer. Missing, discolored, or bright dots appear on the screen every time you turn on your computer. Make sure that the operating system and the application program are installed and configured correctly. If they are, have the computer serviced. Press and hold the power switch for 4 seconds or over to turn off your computer; then turn it on again. This is an intrinsic characteristic of the TFT technology. Your computer's display contains multiple thin-film transistors (TFTs). A small number of missing, discolored, or bright dots on the screen might exist all the time. 26 IBM ThinkPad A20 User's Reference Hardware troubleshooting Battery problems Problem The battery pack cannot be fully charged by the power-off charging method in the standard charge time for your computer. Cause and action The battery pack might be over-discharged. Do the following: 1. Turn off the computer. 2. Make sure that the over-discharged battery pack is in the computer. 3. Connect the ac adapter to the computer and let it charge. If the battery pack cannot be fully charged in 24 hours, use a new battery pack. If the optional Quick Charger is available, use it to charge the over-discharged battery pack. Discharge and recharge the battery pack. Your computer shuts down before the battery status indicator shows empty, -orYour computer operates after the battery status indicator shows empty. The operating time for a fully charged battery pack is short. The computer does not operate with a fully charged battery pack. The battery pack cannot be charged. Discharge and recharge the battery pack. If your battery's operating time is still short, use a new battery pack. The surge protector in the battery pack might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again. You cannot charge the battery when it is too hot. If the battery feels hot, remove it from the computer and allow it to cool to room temperature. After it cools, reinstall it and recharge the battery. If it still cannot be charged, have it serviced. Hard-disk-drive problems Problem The hard-disk drive makes a rattling noise intermittently. Cause and action The rattling noise might be heard when: The hard-disk drive starts accessing the data or when it stops. You carry the hard-disk drive. You carry your computer. This is a normal characteristic of a hard-disk drive and is not a defect. Chapter 3. Solving computer problems 27 Hardware troubleshooting Problem The hard-disk drive does not work. Cause and action In the Startup menu in the IBM BIOS Setup Utility, make sure that there is no exclamation point ! to the left of the hard-disk drive. If there is such a mark, the hard-disk drive is disabled. Clear the mark to enable the drive. Software problems Problem An application does not run correctly. Cause and action Make sure that the problem is not being caused by the application. Check that your computer has the minimum memory required for the application. Refer to the manuals supplied with the application. Check that the application is designed to operate with your operating system. Check that other applications run correctly on your computer. Check that the necessary device drivers are installed. Check that the application works when it is run on some other computer. If an error message appears when you are using the application program, refer to the manuals supplied with the application. If the application still does not run correctly, contact your place of purchase or a service representative for help. The main window bitmap in the ThinkPad Configuration Program is distorted (Windows NT only). Installing the Active Desktop, bundled with Internet Explorer Version 4.0 on Windows NT, might cause this problem. Do one of the following: Uninstall the Active Desktop. (Merely disabling the Active Desktop does not solve the problem.) Close the ThinkPad Configuration Program, and start it again. (This is a temporary recovery.) 28 IBM ThinkPad A20 User's Reference Hardware troubleshooting Other problems Problem The computer locks or does not accept any input. Cause and action Your computer might lock when it enters standby mode during a communication operation. Disable the standby timer when you are working on the network. To turn off the computer, press and hold the power switch for 4 seconds or more. The computer does not turn off with the power switch. If the standby indicator is on and you are working under battery power, replace the battery with a fully charged one or change your power source to ac power. If you still have a problem, press and hold the power switch for 4 seconds or more; this forces the computer to turn off. The computer does not start from the device you choose, such as a diskette drive. Refer to the Startup menu of the IBM BIOS Setup Utility (refer to "Starting BIOS Setup Utility" on page 7). Make sure that the startup sequence in the BIOS Setup Utility is set so that the computer starts from the device you choose. Make sure that the device from which the computer starts is enabled, by checking there is no ! mark preceding the device name. Chapter 3. Solving computer problems 29 Backing up your system Testing your computer If you have a problem with your computer, you can test it by using PC-Doctor. To run PC-Doctor, do as follows: 1. Click Start. 2. Move the cursor to Programs and then to PC-Doctor for Windows. 3. Click PC-Doctor for Windows. 4. Choose either the Quick Test or the standard test. Attention Running the Quick Test set can take 10 minutes or longer. Make sure you have time to run the entire test; do not interrupt the test while it is running. The Quick Test set runs many test of critical hardware components, but it does not run all PC-Doctor diagnostic tests. If PC-Doctor reports that all tests have been run and that it found no problems, consider running additional tests in PC-Doctor. If you are preparing to contact IBM for support, be sure to print the test log so that you can rapidly provide information to the help technician. Backing up your system Backing up your system configuration When you add software applications or devices to your computer, the installation process can change the computer registry and configuration. If your computer does not work properly after you add applications or devices, you need to restore the previous configuration. Use ConfigSafe to save the configuration before you make changes. Then if something goes wrong, Use ConfigSafe to restore the system registry and configuration files. 30 IBM ThinkPad A20 User's Reference Backing up your system To capture a snapshot of your system configuration with ConfigSafe: 1. Click Start. 2. Move the cursor to Programs, ConfigSafe, and then ConfigSafe. 3. Double-click ConfigSafe. 4. Click the camera icon. 5. Type a name for the snapshot. For example, before installing a word processor, you might type, "pre word processing install." 6. Click OK. 7. After a few moments, the main ConfigSafe window will return. The snapshot is complete. If you need to restore a configuration snapshot, open ConfigSafe and follow the on-screen instructions. Backing up your data Hard disks are reliable data storage devices. Even so, it is wise to protect yourself against accidental data loss or the unlikely event of a hard-disk malfunction by backing up your important files regularly. To back up data, start the backup application as follows: 1. Click Start. 2. Move the cursor to Programs, Accessories, System Tools, and Backup. 3. Click Backup. Make sure that the Create a new backup job button is marked in the Microsoft Backup window. Click OK. The Backup Wizard will guide you through backing up some or all of the files on your hard disk. Chapter 3. Solving computer problems 31 Backing up your system Recovering lost or damaged software Using the Recovery CD A Recovery CD and a Recovery Boot Diskette are provided with your computer. If the preinstalled operating system becomes damaged or is accidentally erased, you can recover it by using the Recovery CD. Attention These recovery programs erase the entire hard disk, including personal files and software programs you have installed. These programs restore your hard disk to its factory-shipped condition. Be sure to back up all your personal files before you use a Recovery CD. Note: The recovery process might take up to 2 hours. To start the recovery process: 1. Turn off the computer. 2. Make sure that the CD- or DVD-ROM drive is connected to your computer. 3. Make sure that the diskette drive is connected to your computer. 4. Insert the Recovery CD Boot Diskette into the diskette drive. 5. Turn on the computer. 6. Follow the on-screen instructions. You will be prompted to insert the Recovery CD into the CD-ROM or DVD-ROM drive. 7. When you receive a message saying that the recovery process is complete, remove the Recovery CD Boot Diskette from the diskette drive. 8. Select Restart. Your computer will restart with the original preloaded operating system. 32 IBM ThinkPad A20 User's Reference Backing up your system Using the Software Selections CD The Software Selections CD is provided for your installation convenience. You can customize your computer with this CD. It contains all the software applications and device drivers for your computer. If you need to reinstall software, or install a driver for a hardware device, put the Software Selections CD in your CD-ROM or DVD-ROM drive. The Features menu appears automatically. The Software Selections CD offers the following functions: Welcome This page displays the model and serial number of your computer, and a menu from which you can select an item by clicking it. Install Software Use this page for doing the following: ­ Reinstalling a software application ­ Installing a hardware device driver ­ Installing additional software that was not preinstalled on your computer Uninstall Software You can uninstall any application program or device driver that was installed from the Software Selections CD and that has an uninstall entry in the Add/Remove Program list. Advanced Functions ­ Change Settings You can view the Software Selections CD program text and software products in a language other than the language of your operating system. ­ Create a Device Driver Diskette Drivers for the most common devices are provided on the Software Selections CD. With this function, you can create an installation diskette for the drivers you need. Chapter 3. Solving computer problems 33 Backing up your system ­ Create a Software Selections CD image You can copy the entire Software Selections CD and program onto your hard disk and install software and drivers without the CD. ­ Read the License Agreement This page describes the license agreements for the software programs on the Software Selections CD. ­ Help This page introduces the Software Selections CD and explains each item. 34 IBM ThinkPad A20 User's Reference