Hi, I have a 12 inch, 1.5 GHz PowerBook G4 that is having problems. I shut it down as the bluetooth wasn't being recognized, and when I turned it on, it didn't chime or give anything onscreen. What the heck is wrong? I've tried a pram reset, pmu, tried going into open firmware, and it won't eject any discs with the mouse down. Any input is appreciated!