My powerbook G4 has a button thats used to unhinge the LCD screen and flip the computer open. When I flip it open, the light turns on, but it should be off. If I pull the LCD screen forward as if I am going to close the screen, the light turns off as I am pulling the screen forward. As soon as I stop the motion, the power light goes back on. Its very odd. This problem started when I updated my OS to 10.5.8 and the light is starting to get annoying. Any ideas? thanks.