Hi, Recently I took in my iPod 32 gig to the Apple Store due to the screen having a slight yellowness to it, mostly visible in the menubar that appeared not white at all. So the guy took a look at it and gave me a brand new one. When I came home, I turned it on and it had the same problem as before. Is it worth going back again or should I just keep this one because it seems many of the 32 gigs have this problem. Thanks in advance..