I recently bought Fallout 3 Game of the Year Edition about a month ago and have been playing darn near religiously. Today I went to play and the game booted to a normal looking update screen. I chose to install the update. It then went to a screen where I could choose some or all of the available DLC's (i.e operation anchorage, broken steel, etc.). I chose to download all, which took quite some time. When it said it was done it opened the tray and went to the xbox dashboard screen. I then closed the tray and started to try to play the game. This is when the same update screen pops up, I do the process all over again. This still doesn't work. I then simply tried to say no to the update, but that just kicks me out to the xbox dashboard screen. This glitch renders me unable to play the game at all. I have tried deleting all the downloads and trying again, but still nothing works. Please help!

Issue resolved. Found out user (i.e me) was an idiot. There are 2 discs in the packet I put the wrong one in after nearly a month of doing it right.