Manual

Troubleshooting 117
Unexpected characters
DISABLE THE NUMERIC KEYPAD — Press <Num Lk> to disable the numeric
keypad if numbers are displayed instead of letters. Verify that the numbers lock
light is not lit.
Lockups and Software Problems
Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 198) as
you complete these checks.
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide .
The computer does not start up
ENSURE THAT THE AC ADAPTER IS FIRMLY CONNECTED TO THE COMPUTER AND TO THE ELECTRICAL
OUTLET.
The computer stops responding
NOTICE: You might lose data if you are unable to perform an operating system
shutdown.
T
URN THE COMPUTER OFF — If you are unable to get a response by pressing a key
on your keyboard or moving your mouse, press and hold the power button for at
least 8 to 10 seconds until the computer turns off. Then restart your computer.
A program stops responding or crashes repeatedly
NOTE: Software usually includes installation instructions in its documentation or
on a floppy disk or CD.
E
ND THE PROGRAM —
1 Press <Ctrl><Shift><Esc> simultaneously.
2 Click Task Ma nager .
3 Click the program that is no longer responding.
4 Click End Task .
CHECK THE SOFTWARE DOCUMENTATION — If necessary, uninstall and then reinstall
the program.