Apple PowerBook G3 - Manual (Page 63)

When you start up the computer, the display lights up for a moment, then shuts down.
m Make sure you are using the correct power adapter for your
computer model.
m If the computer is running on the battery, make sure the battery is charged.
Or connect the external power adapter.
The computer won’t wake after the battery was replaced with the computer in sleep and
without the power adapter plugged in.
m Connect the power adapter and press the Power key (or any other key
except Caps Lock) to wake the computer.
Tip: Leave the power adapter plugged in and charging the system for at
least 24 hours to ensure that the backup battery is charged enough to allow
battery replacement during computer sleep.
Problems working with programs
The computer freezes or displays a system error message.
m There may be a temporary software problem. To reset the computer, try the
following suggestions in order until the computer starts up normally:
1. If the computer freezes, you can try to quit the program you’re using by
pressing the keys Command (x), Option, and Esc on your keyboard.
Click Force Quit in the dialog box that appears. (You’ll lose unsaved
changes in that program’s documents.)
Immediately save all open documents and quit all open programs, then
restart the computer.
2. If you see a message about a system error, you may need to reset the
computer. The method of resetting you should always try first is to press
the Command (x), Control, and Power keys simultaneously. If the
computer does not start up, connect the power adapter (if it is not
already connected) and press the reset button (marked with the icon I)
on the back panel.
Note: You will lose any work you have not saved.
63 Tips and Troubleshooting