I have a 1GHz 15" PowerBook G4. It runs fine off the battery, but as soon as you plug the charger in it turns off and won't turn on again until I static reset it (powerbutton held down for 10 secs). I've tried PRAM, NVRAM and static resets. I've tried 3 different batteries, 3 different chargers (2x 65w & 1x 45w). The batteries won't charge either, and they are known good batteries. I have no idea whats going on, does anyone have any ideas?