I figured it out. It was due to a skyrim tweak i had tried to improve the poor performance on the game.
For the record, yes, Skyrim is the ONLY game that performs poorly on my system. Though I am not the only one, it has issues with crossfire systems right now. I mean i can run Battlefield 3 with everything on Ultra 2xAA, everything else on max at 4800x900 and get 50 FPS average. Which is pretty decent for that resolution.
So yeah, its just Skyrim.