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Troubleshooting
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The text on the display is dim or difficult to read
■ Adjust the brightness and contrast controls.
■ Use the monitor degauss feature (see your monitor documentation) or turn
off your computer and monitor, leave them off for at least a half hour,
then restart your computer.
■ Change the display settings.
■ Move the monitor away from sources of electrical interference, such as
televisions, unshielded speakers, microwaves, fluorescent lights, and metal
beams or shelves.
For more information about display types, see your monitor and video card
documentation.
Mouse
The mouse does not work
■ Make sure that the mouse cable is plugged in correctly.
■ Shut down and restart your computer.
■ Remove all extension cables and switch boxes.
■ Try a mouse that you know is works to make sure that the mouse port
works.
■ Reinstall the device driver. For more information, see “Reinstalling device
drivers” on page 81.
The mouse works erratically
If the mouse pointer begins moving erratically across the computer display or
becomes difficult to control precisely, cleaning the mouse will likely improve
its accuracy.
If you have an optical mouse, clean the mouse by wiping the bottom with a
clean, damp cloth. Make sure that the optical sensor is clean and free or debris.
If you have a trackball mouse, see “Cleaning the mouse” on page 68.
Help and
Support
For a video tutorial about cleaning the mouse, click Start,
Help and Support, Video tutorials, Maintaining your
computer, then click Cleaning the mouse.