Ok, there just seems to be a general roblem when installing the game to the 360. Not only do textures fail to load properly sometimes. So to do animation and other materials. I have had entire sections of areas missing sometimes. Walls don't load, so you can just walk outside Whiterun etc. The reason I post this is because I suspect sometimes code doesn't load properly at times too. Sometimes people will engage me, but they will never swing their swords. Sometimes beasts will never attack, they'll just stand frozen. Now, I've seen similair issues running off the disc, but since installing it, I have not only seen increased loading times, but also higher frequency of errors when my game loads.

And, yes, the cache gets cleared. Please take note, this is emphasis when it does go wrong. It isn't always this bad. But worth mentioning, incase these are linked bugs - loading/streaming issues.