There were many posts, including my own, from people who had issues with the 182.06 driver. I personally point the finger at Microsoft and there BS WHQL certification. I had no issues with the 182.05 Beta and in fact it fixed all my GTA IV issues. Then I install the 182.06 WHQL which was supposed to be exactly the same just adding the WHQL cert and I got crashes in every game I played. Like they said though the 182.08 works great so give it a shot.