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96 Troubleshooting
CHECK THE SYSTEM SETUP PROGRAM SETTINGS — Verify that the system setup
program lists the correct device for the pointing device option. (The
computer automatically recognizes a USB mouse without making any setting
adjustments.) For more information on using the system setup program, see
"System Setup Program" on page 101.
TEST THE MOUSE CONTROLLER — To test the mouse controller (which affects
pointer movement) and the operation of the touch pad or mouse buttons,
run the Mouse test in the Pointing Devices test group in the Dell Diagnostics
(see "Dell Diagnostics" on page 79).
REINSTALL THE TOUCH PAD DRIVER — See "Reinstalling Drivers and Utilities"
on page 106.
Video and Monitor Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
NOTICE: If your computer came with a PCI graphics card installed, removal of the
card is not necessary when installing additional graphics cards; however, the card
is required for troubleshooting purposes. If you remove the card, store it in a safe
and secure location. For information about your graphics card, go to
support.dell.com.
The screen is blank
NOTE: For troubleshooting procedures, see the monitor’s documentation.
The screen is difficult to read
CHECK THE DIAGNOSTIC LIGHTS — See "Diagnostic Lights" on page 73.
CHECK THE MONITOR SETTINGS — See the monitor documentation for
instructions on adjusting the contrast and brightness, demagnetizing
(degaussing) the monitor, and running the monitor self-test.
ADJUST THE WINDOWS DISPLAY SETTINGS
Windows XP:
1
Click
Start
→
Control Panel
→
Appearance and Themes
.
2
Click the area you want to change or click the
Display
icon.
3
Try different settings for
Color quality
and
Screen resolution
.
book.book Page 96 Wednesday, December 12, 2007 10:32 AM