Keyboard problems
•Problem: All or some keys on the keyboard do not work.
Solution: If an external numeric keypad is connected:
1.Turn off the computer.
2.Remove the external numeric keypad.
3.Turn on the computer and try using the keyboard again.
If the keyboard problem is resolved, carefully reconnect the external numeric keypad and the external keyboard. Ensure that you have seated the connectors correctly.
If keys on the keyboard still do not work, have the computer serviced.
•Problem: All or some keys on the external numeric keypad do not work.
Solution: Ensure that the external numeric keypad is correctly connected to the computer.
Problems with the display and multimedia devices
This topic includes the most common problems with displays and multimedia devices, including the computer display, the external monitor, and the audio devices.
Computer screen problems
•Problem: When I turn on the computer, nothing is displayed on the screen and the computer does not beep while starting up.
Note: If you are not sure whether you heard any beeps, turn off the computer by pressing and holding the power button for about eight seconds. Turn it on and listen again.
Solution: Ensure that:
–The battery is installed correctly.
–The ac power adapter is connected to the computer and the power cord is plugged into a working electrical outlet.
–The computer is turned on. (Turn the power button on again for confirmation.)
If these items are correctly set, and the screen remains blank, have the computer serviced.
•Problem: Incorrect characters are displayed on the screen.
Solution: Did you install the operating system or program correctly? If they are installed and configured correctly, have the computer serviced.
•Problem: The screen stays on even after you turn off your computer.
Solution: Press and hold the power button for about eight seconds to turn off your computer; then turn it on again.
•Problem: Missing, discolored, or bright dots appear on the screen every time you turn on your computer.
Solution: This is an intrinsic characteristic of the TFT technology. Your computer display contains multiple
•Problem: My screen goes blank while the computer is on.
Solution: Your screen saver or power management might have been enabled. Do either of the following:
–Touch the TrackPoint pointing device or the touch pad, or press a key to exit the screen saver.
–Press the power button to resume from sleep.
46User Guide
