I've had my Macbook since last September and everything has been great with it... but today I was just using it, and the palm rest randomly cracked! The part where the palm rest meets the rest of the computer just broke and it's hanging on by a thread. Will Apple replace this? I'm thinking of taking it to the Apple 5th Avenue Store... can they replace it on site? I can't imagine living without my Macbook for a while The computer has about three months left on its Applecare FWIW.