Troubleshooting and Maintenance Guide

Troubleshooting Computer Problems 17

Cursor moves only vertically

or horizontally (or does not

move smoothly on the screen).

Remove the rollerball cover from bottom of mouse (rotate it counter-clockwise),

remove the ball, and clean it with a damp, lint-free cloth (not paper). Also

clean the rollers on which the ball moves.

Mouse does not work or is not

detected.

Unplug and reconnect the mouse cable to your computer.

If the mouse is still not detected, turn off the computer, reconnect the mouse

cable, and then restart the computer.

Optical mouse does not track

cursor well.

Place the mouse on a mouse pad or white sheet of paper, or gently wipe the

light sensor lens on the bottom of the mouse with a lint-free cloth (not paper).

Cursor moves too fast or

too slow.

Adjust the cursor speed:

1 Click the Windows Start Button, Control Panel, Hardware and

Sound, and then Mouse.

2 Click the Pointer Options tab.

3 Adjust the Motion slider toward Slow or Fast to decrease or increase

the speed at which the pointer (cursor) responds to mouse movement.

4 Click OK.

Keyboard and Mouse (continued)

Symptom Possible solution

Power

Symptom Possible solution

Computer will not turn on

or start.

Ensure that cables connecting the computer to the external power source are

plugged in properly.

When the cables connecting the computer to the external power source are

plugged in properly and the wall outlet is functioning, the green power supply

light on the back of the computer should be on; if the light is not on, refer to the

Limited Warranty and Support Guide to contact Support.

If the display (monitor) is blank, the monitor may not be properly connected.

Connect the monitor to the computer, plug it in, and turn it on. Refer to the

Display (Monitor) troubleshooting section on page 11.

Set the line voltage selection switch to the correct setting for your

country/region, or refer to the Limited Warranty and Support Guide to contact

Support.

Test the outlet by connecting a different electrical device to the outlet.