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Troubleshooting charts
Problem Action
The DOS full-screen
looks smaller.
If you use a DOS application that supports only the 640x480 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 and click LCD
; then select the Screen
expansion function. (The image might look slightly distorted.)
Critical low-battery error The computer powered 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.
Hibernation error The system configuration differs between the time your computer entered
hibernation mode and the time it exited this mode, and your computer cannot
resume normal operation.
Change the system configuration to what it was before your computer entered
hibernation mode.
If the memory size was changed, re-create the hibernation file.
Operating system not
found
Verify the following:
The hard disk drive is correctly installed.
A bootable diskette is in the diskette drive.
If you still have a problem, check the boot sequence in the BIOS setup utility.
Chapter 4. Solving computer problems 91