I recently purchased a new xbox 360 maybe a week or two ago. i haven't used it much but during the time i have been using, theres been a few issues. i don't know if it's the games or the xbox its self. when i try to install forza 3 to its hard drive, it gets up to 30% then says to check the disk for scratches, there isn't one scratch on the disk. it installs fine on my other xbox. my other problem is that when i go to play oblivion, it runs so increadibly slow. it'll take about 20 mins to get past the load screen to the main menu. once im there, it'll freeze for about 5 mins then it'll let me scroll through the options. i'll press on lead game and it'll take about 5 mins to bring up my saves and then when i do choose a save, it'll take about 10-15 mins to get into the game. once im in the game, it's impossible to play because of the choppiness and lag. i've installed it to the hard drive but that doesn't help at all. and this game also works fine on the other 360. these are the only two of my games i have issues with, so if some one could help or give any kind of advice, you'll have my thanks.