This is a weird phenomenon and it sucks ass because I need bluetooth. Sometimes, after restarting, my PowerBook G4 1.33 can't find it's bluetooth module. The Bluetooth menubar icon has the zig-zag line through it and says "Bluetooth: Not Available", as if it was an external bluetooth dongle that had been removed. That's so weird because powerbooks have built in bluetooth. The only way to get it working again is to restart anywhere between 1 and 5 times until the bluetooth module is "Available" again. That includes zapping the PRAM- no effect. Oh, and I've done all the firmware updates. Anyone have the same experience? Any fixes? Suggestions? I need my bluetooth!