The previous gen white MacBooks with the Intel GMAs had 3 negatives that were commonly mentioned by owners, being that the case cracks, they run hot and that the fans are always on/noisy. The case cracking I'd deal with if it happens, but before buying one I'd really like to know if the new white Nvidia MacBooks still have the issues with running hot and the fans being on all the time and being noisy? Can anyone who has owned both comment? Thanks.