User's Manual

Troubleshooting 8-11
The computer does not resume from Sleep or Hibernation mode.
 The computer automatically enters Sleep or Hibernation mode when
the battery pack is empty. Do any one of the following:
− Connect the AC adapter to the computer.
− Replace the empty battery pack with a fully charged one.
The computer does not enter Hibernation mode with the
Fn+F12 hot
keys.
 Make sure that the Hibernation function is specified for the sleep
button.
 You might be using an ExpressCard that prevents the computer from
entering Hibernation mode. To enter the mode, stop the
communication program and then remove the card or stop the card.
Software Problems
An application program does not work correctly.
 Make sure that the software is correctly installed.
 If an error message appears on the screen, consult the software
program’s documentation for further information.
 If you are sure the operation has stop, reset the computer. (See
“Resetting the Computer” later in this chapter.)
Sound Problems
No sound is produced.
 Make sure that the volume control is not set too low.
 Make sure that the audio driver is correctly installed.
 Make sure that the computer is not in Sleep mode.
 If using an external speaker, make sure that the speaker is properly
connected.