Hi all. I am having problems opening the cover. It doesn't like to stay, even though I keep it straight, and it tends to fall every so often. Not only that, but when I close it, one end is lopsided. Another issue is that the fan sometimes stays on even though I'm running simple apps, such as Safari! I took it to the Apple store last night and the guy basically said that he can't do anything about it except sending the book back to Apple to have it checked out. He didn't really do anything but open/close my cover for 5 minutes, and in the process scratch the bottom of my PB! Should I take it to another store? I don't know what to do. I don't want to have problems as annoying as these continue over the months. I would like to exchange it, but it seems that it's going to be difficult to do so. Comments? Any help would be appreciated. Thank you!