Download 10 - Orange

If the touch pad operates correctly, the mouse may be defective.
C H E C K T H E S YS T E M S E T U P P R O G R A M S E T T I N G S — 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.)
TE S T T H E M O U S E C O N T R O L L E R — 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 77).
R E I N S T A L L T H E T O U C H P A D D R I V E R — See "Reinstalling Drivers and Utilities" on page 108.
Video and Display Problems
Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 153) 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.
If the display is blank
NOTE: If you are using a program that requires a higher resolution than your computer supports, it is
recommended that you attach an external monitor to your computer.
C H E C K T H E B A T T E R Y — If you are using a battery to power your computer, the battery charge may be
depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.
TE S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
C H E C K T H E AC A D A P T E R — Check the AC adapter cable connections. If the AC adapter has a light,
ensure that the light is on.
C O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T — Bypass power protection devices, power
strips, and the extension cable to verify that the computer turns on.
A D J U S T T H E P O W E R P R O P E R T I E S — Search for the keyword standby in the Windows Help and Support
Center (click Start→ Help and Support).
S W I T C H T H E V I D E O I M A G E — If your computer is attached to an external monitor, press <Fn><F8> to
switch the video image to the display.
If the display is difficult to read
A D J U S T T H E B R I G H T N E S S — Press <Fn> and the up- or down-arrow key
M O V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R — If your external speaker
system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer
or external monitor.
E L I M I N A T E P O S S I B L E I N T E R F E R E N C E — Turn off nearby fans, fluorescent lights, halogen lamps, or other
appliances.
Troubleshooting
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