I just got a replacement macbook yesterday after my last one whined, moo'd, and the case alignment was off. Now today this new macbook has the whine also, but it's also vibrating all the time as if it's accessing the drive.....THIS IS DRIVING ME CRAZY!!! Mac's are supposed to be superior to crappy windows machines and since I'm a switcher this isnt very impressive. Now I have to go back to the store yet AGAIN and try to get a new one. Do you think they'll let me get another one simply because it whines and has a slight vibration to it?