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Helpful answers
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May 11, 2012 3:10 PM in response to bud45by The Mac Bot,Try resetting the PRAM and NVRAM:
1. Turn PowerBook off
2. Take out the battery and power cord
3. Hold down the power button for six seconds
4. Put the battery and power cord back in
5. Hit the power button
6. Once the chime sounds, hold Command-Option-P-R until you hear the chime two more times
7. Release the keys
8. Reboot
9. Once the chime sounds, hold Command-Option-O-F until you get to a gray screen
10. Release the keys
11. Type reset-nvram and press Return
12. Type reset-all and press Return
That may work. If it doesn't, you may have to crack open the case (if you feel comfortable doing so).
If so, which PowerBook do you have?
If you have a black keyboard:
1. Take off the bottom screws
2. Slide it towards the disc drive slot
3. Lift straight up
4. Check the connectors to ensure they are plugged in properly
If you have an aluminum keyboard:
I do not know. I have not taken mine apart.
I imagine you do the same thing (with the screws on the side)...
Good luck!