Bethesda is working on a fix for graphical glitches in the Xbox 360 version of Skyrim.
Notice anything funky going on with your Xbox 360 version of Skyrim? You're not alone. It's not clear how many users have run into trouble but Bethesda has acknowledged that there is a problem with the game, posting the following message on its Skyrim forums:
"Skyrim uses a lot of dynamic streaming systems, including textures. We've seen a few reports of certain textures temporarily scaling down on the Xbox 360, and not scaling back up. We have verified that this issue does not occur when playing off the disk and when the game is fully cached (not installed). Skyrim makes heavy use of the Xbox 360 caching system, and caches over the normal course of play while in menus or interiors. This cache can be wiped when other games are played or when the user manually removes it. We're working on a solution in the next title update for those who have installed the game."
Not everyone is affected by the issue, so don't feel left out if your game is ticking along perfectly. In the meantime, while there's no word when that title update might be available, at least there's a relatively simple workaround: don't install it to your hard drive.