No issues here, either.
I did, when I installed the first demo, have corrupted textures, but that was fixed handily with the latest Catalyst drivers (4.3).
That type of behavior usually means the last game you played didn't exit cleanly (i.e. didn't purge memory fully).
One other thing you can try is forcing VSYNC ON in the contol panel. That often fixes issues with depth sorting (especially on overclocked machines).
For the record, my card is a 128MB All-in-Wonder Radeon 9700Pro.
This comment was edited on Mar 7, 13:03.