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72 Solving Problems
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Video and Display Problems
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.
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.
REINSTALL THE TOUCH PAD DRIVER — See "Reinstalling Drivers and Utilities" on page 74.
CHECK THE BATTERY — 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.
TEST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
CHECK THE AC ADAPTER — Check the AC adapter cable connections. If the AC adapter has a light,
ensure that the light is on.
CONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET — Bypass power protection devices,
power strips, and the extension cable to verify that the computer turns on.
ADJUST THE POWER PROPERTIES — Search for the keyword standby in the Windows Help and
Support Center. To access help, see "Windows Help and Support Center" on page 11.
SWITCH THE VIDEO IMAGE — If your computer is attached to an external monitor, press <Fn><F8>
to switch the video image to the display.