BattleField 3 and Catalyst Problems!

Hi everyone. I'm currently facing serious problems with catalyst's versions up from 12.1. Every newer version I tried gave me bsod's when my computer was idle, which is ridiculous. I tried clean installing everything but had no success. I'm testing 12.6 (the official beta) now and I haven't had any bsod so far, but I can't correctly configure my eyefinity setup and battlelfield 3 won't start after the update, it says it is initializing and then nothing happens. I know is is related to the catalyst version because I went back to 12.1 and the game starts right away. This also happens with mass effect 3 and if I try to open widescreen fixer it crashes. I tried uninstalling the previous version first and it didn't help. I tried installing it over the previous version and it didn't work. I have two 5870's in crossfire and three monitors plugged via dvi x2 and displayport. When I try to enable eyefinity it says it is enabled but nothing changes, I still remain with mirrored screens. The main reason I want to try newer versions is because I've been trying to play bf3 in eyefinity for months now but I just can't. I get massive drops in framerates and I've tried everything. I have an i7 920@4ghz and 6gb ram and I tried lowering the overall quality, disabling hyper-threading and a bunch of other things but nothing works. I can play with one card on ultra settings without aa at about 25 to 30 fps but when I enable crossfire my fps won't go past 40fps and it keeps dropping to 15 or lower all the time making it really hard to play. Also if I play using only one monitor and crossfire enabled the second gpu utilization drops to 0 as if it was using only one card. Please help! I don't know what else to do....