I just bought a 15" Superdrive Powerbook G4 10 days ago. The computer has been nothing but amazing, I've got everything loaded up and have been editing and having fun with it. Just last night while watching a DVD I noticed a green dot in the bottom right corner of the screen. It basically looks like a pixel is missing from the screen. I called AppleCare this morning and they tell me that they can't or won't actually fix anything unless it is a cluster of pixels and that 1 pixel is "within specification". Now I know this is a minor problem but it really bugs me on a brand spankin' new machine. I'm curious as to what caused this and want to know if you guys think its worth it to try to get the computer replaced. I bought it a the University of Penn computer store because they gave me a nice price on it. What do you think?