Troubleshooting
125
C
HECK
THE
MOUSE
CABLE
—
Shut down the computer, disconnect the mouse
cable and check it for damage, then firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the
mouse directly to the computer.
T
O
VERIFY
THAT
THE
PROBLEM
IS
WITH
THE
MOUSE
,
CHECK
THE
TOUCH
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
HECK
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).
T
EST
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" on page 97.
R
EINSTALL
THE
TOUCH
PAD
DRIVER
—
See "Reinstalling Drivers and Utilities"
on page 128.
Video and Display Problems
Fill out the "Diagnostics Checklist" on page 174 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.
Summary of Contents for Inspiron 1721
Page 1: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell Inspiron 1721 Owner s Manual Model PP22X ...
Page 20: ...20 About Your Computer Front View 4 5 13 3 6 12 11 9 8 7 14 2 1 10 ...
Page 52: ...52 Using a Battery ...
Page 76: ...76 Using Multimedia ...
Page 80: ...80 Using ExpressCards ...
Page 96: ...96 Securing Your Computer ...
Page 166: ...166 Dell QuickSet Features ...
Page 176: ...176 Getting Help ...
Page 194: ...194 Appendix ...
Page 212: ...212 Glossary ...
Page 220: ...220 Index ...