Yesterday, I was playing Skyrim, when all of a sudden, my Xbox freezes. This is not so uncommon when playing Skyrim, so elect to restart my Xbox manually. However, when it turns on, it will not move past the initial screen with the logo for Xbox on it, (you know, the grey ball and the green X?) My Xbox has NO modifications of any kind, and has not gone through any physical abuse, or been repaired by third party companies. I'm at my wits end here. What should I do?