I've searched this site and noticed some posts on this, but not too many to believe it's really prevalent. My machine is about a month old and the creaking I'm getting in my left palmrest, although not severe, is driving me a bit batty. I guess I just wanted to find out if this is something Apple will actually fix if I make an appt with a genius (ie. is the fix simple, or does it require a new top case?), and will I get my actual computer back if I have them service it? Everything else about it is great, don't notice the screen yellowing/no dead pixels, keyboard has just the right feel, etc.