If these items are properly set, and the screen remains blank, have the
computer serviced.
Problem:
When I turn on the machine, nothing appears on the screen, but I hear
two or more beeps.
Solution:
Make sure that the memory card is installed correctly. If it is, but the
screen is still blank, and you hear five beeps, have the computer serviced.
If you hear 4 cycles of 4 beeps each, the Security Chip has a problem.
Have the computer serviced.
Problem:
When I turn on the machine, only a white pointer appears on a blank
screen.
Solution:
Reinstall your operating system, and turn on the computer. If you still see
only the pointer on the screen, have the computer serviced.
Problem:
My screen goes blank while the computer is on.
Solution
Your screen saver or power management may be enabled. Touch the
TrackPoint, or the touch pad, or press a key to exit the screen saver, or
press the power switch to resume from standby or hibernation.
Problem:
The DOS full-screen looks smaller.
Solution:
If you use a DOS application that supports only 640×480 resolution (VGA
mode), the screen image might look slightly distorted or 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 and click LCD; then
select the Screen expansion function. (The image might still look slightly
distorted.)
Note: If your computer has a screen expansion function, you can use the
Fn+F8 keys to expand the screen image.
A password problem
Problem:
I forgot my password.
Solving computer problems
18
ThinkPad
®
T40 Series Service and Troubleshooting Guide
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