Newbie Mac owner ( and dam happy with the change after considering it for so long) with a question I havent seen mentioned anywhere. I have a 24" 2.4ghz Imac which is 3 months old. It has developed a problem (has only occured twice over the last month) whereby it seems the inside of the screen is iced up! This slowly disappears over the space of an hour or so It is not cold to touch so I am not sure whats going on.... comments please.