hey having serious trouble, quick question, been running my 5770s on crossfire for a while in crysis 2 usually getting around 55-60 fps.. 1920 by 1080 on a 61htz 32 inch lg tv.. which was an improvement from a single 5770... but the past few days ive been getting around 35-40 fps on crossfire from same game and same settings. im finding that i get the same results if not better disabling the crossfire support, ive swapped the gpus around. but still it seems that one or 2 of the 5770s are underperforming compared what they used to ? i have the latest catalyst centre and crossfire support,tried fresh installs of drivers making sure nothing is left, but cant figure out what the problem is ? cheers