Thanks Vati.
More follow up.
6.50 and (6.51?) Drivers decreased FR, the best drivers that worked for me are the latest (7.52 I believe, not at home, so hard to check).
Interesting note: with 1040 res I get 26 FPS in the AH benchmark, with 1280 res I get 32 FPS !! So I not only gained 7 FPS, but am using a better resolution too!