A few days ago I had an issue witht the game repeatedly freezing on the Frostflow Abyss dungeon. I had posted it here:
I also sent an e-mail to Bethesda Support... and got this response back in a couple of days, for those of you interested:
Thank you for contacting Bethsoft support. We apologize for the inconvenience you are encountering with your game. Clearing both your system and game cache may fix your issues. Here are the instructions for both:
Clearing the Game Cache on the Xbox 360 is a separate function from clearing the System Cache. In order to do so, you must hold the LEFT Bumper, RIGHT Bumper, and the X button all at the same time on the Xbox 360 controller as a game is launching. Once you reach the Main Menu or Title Screen of the game, you can let go of the buttons. There will be no notification to you that this process has completed because it is all done passively.
To clear the Xbox 360 cache select My Xbox, System Settings, Memory… then highlight the HDD, press Y… and then simply select “Clear System Cache”. Select Yes when prompted to perform Hard Drive Maintenance.
* = Deleting the cache will remove temporary game files and updates. Saved games, profiles, DLC etc will NOT be removed.
I don't know if this will correct the problem, as I found a way to avoid the freeze by stubbornley trying over and over to find a way around the freeze, but hopefully this helps other people now or me in the future. It'd be cool if this could get stickied, since, you know, Skyrim is a glitchy game and this happens to a lot of people.