Hello. I purchased a refurbished 12 inch Rev. B powerbook in february. I am throughly enjoying my first mac (and this website) but I have run into a little trouble. The left hinge on the screen has become loose and wobbles a little. I am concerned that this will become a more serious problem over time. Can I have this addressed under my warranty?I am worried that apple will tell me that this is normal or some other non-sense. I have already had the screen replaced due to white spots and this was after the first powerbook that was shipped to me was DOA! Ever since the screen was replaced the hinge has creaked when the screen moves and it has starteed to loosen up so maybe the repair wasn't done right? Does anyone have any experience here?