I got a new WD caviar 80gig hd last week and i keep having this problem. When Ever i try to play a game the hd makes 1 click then freezes(usually with in 20sec-30min in). Sometimes when im not doing anything but on firefox it still does it, but that hasnt happened for a few days. It also does it when windows boots up and it will just freeze. Any clue on what might be wrong? Could the hd be defective?