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Chapter 2. Solving computer problems
Diagnosing problems . . . . . . . . .12
Troubleshooting . . . . . . . . . . .12
Error messages . . . . . . . . . .12
Errors without messages . . . . . . .17
A password problem . . . . . . . .19
A power switch problem . . . . . . .19
Keyboard problems . . . . . . . .19
UltraNav problems . . . . . . . . .20
Standby or hibernation problems . . . .21
Computer screen problems . . . . . .25
Battery problems . . . . . . . . .27
Hard disk drive problems . . . . . .28
A startup problem . . . . . . . . .28
Fingerprint authentication problems . . .30
Other problems . . . . . . . . . .31
Starting BIOS Setup Utility . . . . . . .35
Recovering pre-installed software . . . . .36
For ThinkPad T41/41p Series computer . .36
For other ThinkPad T40 Series computer 37
Upgrading the hard disk drive . . . . . .38
Replacing the battery . . . . . . . . .40
© Lenovo 2005. Portions © IBM Corp. 2005. 11