Source Game's Problem Back again with another problem overclockers hopefully you guys can give me some clue to what is happening here. It would seem i'm getting some huge drops due to smoke particles on all source games. I belive it's a problem with the operating system as it never happend before when I was on vista. I noticed it about two weeks ago when I was playing CSS whenever I was in close range of a nade explosion, smoke grenade or smoke particles coming from wall (when shot at) I would get dips from 120+FPS to 15-20FPS. Game's I have noticed this problem in so far are...Half Life 2, Left 4 Dead 2, Counter Strike Source All of which are effected by smoke particles it would seem. At first I thought it was my GTX 280 overheating or something but now I have my 5870 it's still happening. Also I updated to 64bit windows 7 ultimate today (was on 32bit before) and the problem still proceeds. Anyway I've googled for about 2hours and still have no leads. thanks for reading.