so i updated itunes to 8.2 and put the 4th beta on my ipod. everything was dandy. then i tried to put 5 on there and im stuck on the PSOD. i downgraded itunes to 8.1.1 and when i DFU the ipod and try to put on 2.2.1, it works until the loading thing on the ipod appears. then it doesnt load any, itunens says preparing ipod for restore, and then the ipod finally goes back to the PSOD and itunes says "preparing ipod for restore" until i force quit. any ideas?