Dell Latitude D531 (Mid 2007) - Manual (Page 97)

Troubleshooting 97
C H E C K T H E M O U S E C A B L E — Shut down the computer. Disconnect the mouse cable, check it for damage, and
firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer.
T O V E RI F Y T H A T T H E P R O B L E M I S WIT H T H E M O U S E , C H E C K T H E T O U C H PAD
1 Shut down the computer.
2 Disconnect the mouse.
3 Turn on the computer.
4 At the Windows
desktop, use the touch pad to move the cursor around, select an icon, and open it.
If the touch pad operates correctly, the mouse may be defective.
C H E C K T H E S YS T E M SE T U P P R O G R A M S E TT 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.) For more information on using the system setup program, see "System Setup Program" on page 99.
T
E ST T H E M O U S E CO N TR O LL 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 79).
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 104.
Video and Display Problems
Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 139) 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 TT 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.
T
E ST T H E E L E CT 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 CT L Y T O A N E L E C T RI 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 ST TH E PO WE R P RO P E R T I E S — Search for the keyword standby in the Windows Help and Support Center. To
access the Help and Support Center, click Start or → 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 or video projector, press
<Fn><F8> to switch the video image to the display or video projector.