If my iBook is on battery power while sleeping and I plug her in to the AC adaptor she wakes up. A few seconds later, though, she goes back to sleep again and then wakes up again and the cycle continues. Is this supposed to happen? I'm pretty sure it isn't.. because I don't remember this ever happening before. What can I do to fix this? I have already tried to repair permissions and reset the PRAM and the problem still persists. Any help would be greatly appreciated. Thank you.