I recently upgraded to a 6850, and while it does games just fine, i can now barely play windows media player at the same time.
Just using wmp to play an mp4 alone takes up 30-40% of my GPU (according to CCC) and wmp playing mp4 + me playing WoW = 100% GPU usage and my fps dies. I dont remember this happening on my older 5750. I use a 1055t with 4gb of ram and catalyst 10.10
yes it is, the only thing I changed is swapping my 5750 to a 6850 (just a drop in, didn't mess with software).
so maybe I need to re-install all my ati driver software and re-install, or is an isolated issue with 6800 cards? or maybe I have bad card (unlikely since it does 3d just fine and VLC is playing fine too).