I have one of those older xbox's (can't say what kind specifically).
I've tried playing with Skyrim on HDD and off the disc.
On the HDD the textures don't load properly (particularly with hands and occasionally weapons).
Playing off the disk makes the textures load when I start the game, but eventually the textures disappear. While this MIGHT be better visually, it sounds like a revved up engine and I experience drops in FPS when I"m opening menus and such.
Hope they fix this soon.
EDIT: I have confirmed that opening the "B Menu" sends the textures to hell. Perhaps this is what is causing the issue.
