ill have to test that spot to see if i can replicate it
hmm
and yea sad but it will be fixed in the update about the skills for sorc not being able to go to 100 on climb and sneak and thieving as you cant get that achievement as sorc not sure how to get that truly since each line has a skill they wont use, shrug, anyway i dont have my rogue saves up but I backed em up
try a res thats more like 640x480 just real fast, see if the problem persists, and maybe try NO filter for just a test (seemed to fix another guys gfx issues sooo never know!)
EDIT: just so you know raising the res wont improve the games visuals, just makes the window of the game the same size as windows, the game wont ever run in anything higher than it was coded for.
I run just 2x filter and even that is double the games standard I believe