I recently flashed my slim 360, it's played most backups perfectly, including many that my old flashed phat had problems playing. However there are two games that just won't work and they have the exact same problem, Dungeon Siege 3 and Majin and the Forsaken Kingdom both go to a black screen after selecting them on the dash and never get past that. On this screen even the home button on the 360 controller does nothing. I then either have to shut off the console or eject the disc, if I eject it then the system goes back to dash like nothing happened. Any ideas?