Password Problems; A Power Switch Problem; Keyboard Problems - IBM ThinkPad i Series 1800 Troubleshooting Manual

Problem: When I turn on the machine, only a white cursor appears on a
blank screen.
Solution: First, reboot your system by pressing Ctrl+Alt+Del. If that does not
work, hold down the power switch for more than 4 seconds. If this does not
resolve the problem, you may need to reinstall your operating system.

Password problems

Problem: I forgot my password.
Solution: If you forgot your power-on password, you have to take your
computer to an IBM reseller or marketing representative to have the password
canceled.
If you forgot your hard disk password, IBM will not reset your password or
recover data from the hard disk. You must take your computer to an IBM
reseller or an IBM marketing representative to have the hard disk drive
replaced. Proof of purchase is required, and an additional charge might be
required for the service.
If you forgot your supervisor password, IBM will not reset your password.
You must take your computer to an IBM reseller or IBM marketing
representative to have the system board replaced. Proof of purchase is
required, and an additional charge might be required for the service.
Problem: My screen goes blank while the computer is on.
Solution: Your screen saver or power management may be enabled. Move the
TrackPoint or press a key to exit the screen saver, or press the power switch to
resume from standby or hibernation.

A power switch problem

Problem: The system does not respond, and you cannot turn off the computer.
Solution: 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.

Keyboard problems

Problem: The cursor does not move after the computer returns from one of
the power management modes.
Solution: Make sure you followed the instructions correctly when you
installed Windows with the Advanced Power Management (APM) option.
Solving computer problems
Chapter 2. Solving computer problems
15