Its absolutely awful, every level of the game which involves rain with wet surfaces , reflections has HORRIBLE pop up issues. I run around looking at the ground and wet/dry surface randomly changes, also shadows which isnt supposed to be there because nothing is casting them are appearing and disappearing. It happens only in night/wet/rainy levels....
HD6950 11.4 drivers
settings dont matter , it happens on all of em.
EDIT: Also in some (also wet/rainy/) scenes shadows arent supposed to be there at all, for example there is door open and light coming in to the room and shadows are really strange.