Solutions
-
Ioan92's post in About KB2670838 and the side effects of removing it. was marked as the answerHeads up, I think I found a fix..
Although this defies logic, set AA to Override any application setting and then set an AA level through inspector, you can go for a match with the SF or anything else apparently. This fixes your shadow AA. (but be sure to have the Bioshock thingy on as well.)