Vielleicht ein Reset des Powermanagers?
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http://docs.info.apple.com/article.html?artnum=58416
habe ich folgendes gefunden:
PowerBook 190, 1400, 2400, 3400, and 5300 Series
The PowerBook 190, 1400, 3400, and 5300 Series have two different ways to reset the Power Manager. The only difference is the location of the reset button. See the table below for the location of the reset button on each PowerBook series.
PowerBook
Reset Button Location (on rear of computer)
190 Series
Below the video-out port
1400 Series
Between the ADB and Serial ports
2400 Series
Above the floppy drive connector
3400 Series
Left of the Serial port
5300 Series
Below the video-out port
Resetting the Power Manager
1. If the computer is on, turn it off.
2. Restart the computer by holding down the reset button for 10 to 20 seconds. (See chart above for location of the reset button for your PowerBook series.)
3. If the computer does not restart, repeat step 2 three or four times.
Resetting the Power Manager and PRAM
Resetting the parameter RAM (PRAM) when the computer is shut down also resets Power Manager. The following process resets both the Power Manager and the parameter RAM.
1. If the computer is on, turn it off.
2. Make sure the Caps Lock key is not down.
3. Restart the computer. Immediately after hearing the startup sound, simultaneously press and hold Command-Option-P-R. (If you do not hold down the key combination within 5 to 10 seconds after the computer restarts, you must repeat steps 1-3.)
4. Hold down the keys until you hear the startup sound again. Then release the keys.
5. If the computer shuts itself off, press the reset button on the back of the computer to turn it back on. (See chart above for location of the reset button for your PowerBook series.)
6. When the computer has finished starting up, restore any custom settings for the desktop pattern, memory, network, AppleTalk, trackpad, power conservation, and so forth.
Viel Erfolg!
M68
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