Troubleshooting: Dell Latitude D620 User's Guide
the headphone connector.
Adjust the Windows volume control
Click or double-click the speaker icon in the lower-right corner
of your screen. Ensure that the volume is turned up and that the sound is not muted.
Touch Pad or Mouse Problems
Check the touch pad settings
1. Click the
Start
button, click
Control Panel
, and then click
Printers and Other Hardware
.
2. Click
Mouse
.
3. Try adjusting the settings.
Check the mouse cable
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.
To 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.
Check the system setup program settings
Verify that the system setup program (see
System
Setup Program
) lists the correct device for the pointing device option. (The computer automatically
recognizes a USB mouse without making any setting adjustments.)
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
).
Reinstall the touch pad driver
See
Reinstalling Drivers and Utilities
.
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