So I bought left 4 dead back the day it was released, and all of a sudden now when I put it in; The loading screen after the intro movie gets to about 5% and the game restarts back to the valve logo and it keeps repeating the process.
I put in another game and it worked fine so my initial reaction was huh somethings wrong with the disk, so I cleaned it and tried again and it still did it. Finally I go trade it in for another new one, I bring it back home and put it in, and it did the exact same thing. Whats wrong with my Xbox? I NEED L4D.