My 280X card has two identical fans, one of which has been acting oddly. Compared to the other fan, it is loose and fidgety to the touch, and when my computer is in use, it spins with a wobble and frequently stops, making the noise a fan makes when its blades catch onto something (I'm guessing they're hitting the walls of the fan opening since the fan is off balance). I actually thought at first that a wire was bumping into a fan. The fan is incredibly annoying and I'm fairly certain the warranty has expired, but if you know of anything you think I should try, it would be extremely appreciated. Thanks!