so my sister's whitebook had a very loose lid. i took it to the genius bar today and the "genius" gave me some story about since there is so much leverage on the screen its gonna be loose no matter what, and showed me another macbook that was right next to him and it also happened to be like that. i told him to have them try to tighten it and do whatever they can. low and behold i came back in an hour and the lid was completely fixed, i knew it wasnt supposed to be that way. but he looked at me like i have macbook ocd, when i showed him how loose it is he said "well i would have to suggest that you dont do that anymore". obviously he was wrong because they were able to fix it. and then i said the aluminum one doesnt do it at all, and he smirks and says "yes it does"....does anyone else have a loose macbook lid?