Specifications

116
Chapter 12
The PowerBook
The computer won’t start.
m The computer may be on, but the screen brightness or contrast may be
turned down. Adjust the brightness and contrast controls.
m The battery or batteries may be drained. Plug in the power adapter, wait 15
minutes, and then try to turn on the computer.
m There may be a temporary problem with the computer’s power system.
Hold down the Control, Option, x (Command), and Power On (
I
) keys
at the same time, and then try to turn the computer on again.
The computer just stopped.
m The computer may have gone to sleep. (If a green light flashes at the top
of the display, the computer is in sleep.) Press any key on the keyboard to
wake the computer.
m The battery may have drained so far that the computer has put itself to
sleep to protect the contents of RAM. Plug in the power adapter, wait 15
minutes, and then turn the computer on again.
m The computer may have “crashed” due to temporary software problems.
Hold down the Control, x (Command), and Power On (
I
) keys at the same
time and then try to turn the computer on again. You will lose any work
you have not saved.
The computer won’t restart.
Try to restart your computer using one of the following methods. Try them in
the order given.
m Press the Control, x (Command), and Power On (
I
) keys at the same time.
Restarting the computer this way does not affect your RAM disk (if you
created one) or its contents.
m Hold down the Control, Option, x (Command), and Power On (
I
) keys at
the same time.
Restarting the computer this way erases the contents of a RAM disk.