I have tried lowering the anti-aliasing and anisotropic filtering, disabling V-Sync, disabling the steam overlay, and disabling all autosaves (I was desperate). I'm about to try again after turning my draw distance down low, but my hopes are slim. I have also checked AMD's site for new drivers but I am up-to-date.
Specs:
i5-2400 @ 3.10GHz
AMD 6870
8GB RAM


) I still get it while loading, and sometimes randomly around the world too, though.