Hey Guys, Since the day I got my iBook, I randomly would see the backlight flicker slightly as I used it. Recently, the volume will go down and up for a few seconds randomly. This leads me to think the iBook thinks its function keys are being pressed. I am stumped as to what this could be. Even weirder, if I press the volume up and down, the system won't respond and I hear "tick tick tick" out of the speakers, then the system will respond and all the issues go away! Any ideas? Thanks!