Hi. I don't know what's wrong, but I can describe the "symptoms".
If I log in with my account and I try to play GeoW2 I get the two logos (first GeoW2, then Microsoft) and the screen goes black, for ever. The console stops responding and I can only turn it off (by pressing the button on the front).
If I don't log in but start the game by reloading the DVD in the tray, the game goes all way through until I have to log in, but when I log in three notifications appear (unlocked characters for the multiplayer options) and the screen freezes as soon as this happens.
Do you know if there is any way to solve it? The game has become pretty unusable now. I was in the middle of a co-operative playthrough on the hardest setting and I would like to be able to finish it.