Lenovo ThinkPad X41 Tablet Troubleshooting Manual page 42

Solving computer problems
v The ac adapter is connected to the computer and the power cord is
v The computer power is on. (Turn on the power switch again for
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. Move the
TrackPoint 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
enable the Screen expansion function. (The image might still look slightly
distorted.)
Note: If your computer has a screen expansion function, you can use the
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ThinkPad X41 Tablet Service and Troubleshooting Guide
plugged into a working electrical outlet.
confirmation.)
Fn+F8 keys to expand the screen image.