Hey guys I was having problems up until a few days ago starting Call of Duty where it was kicking back to the desktop and with FS9 where I couldn't get any air traffic controller voices. The problem with Call of Duty was the 53.03 drivers. So I updated to the 53.04 and got Call of Duty going. If any of you install/delete audio codecs while encoding AVI files, etc you might have deleted an important codec Yes, this is what I did. Answer: I installed ACE Mega CoDecS Pack 5.95 - Pro Edition beta 2 and it solved my ATC problem. So if any of you have got your video card drivers and audio card drivers all up to date and your still having sound problems or what might appear to be DirectX issues with your games, keep these little tid bits in mind.