After trying to be patient for ATI/AMD to sort this problem since the 8.12 came out, Ive come to the end of my tether. Im sick of the constant bsod everytime I boot my pc. Ive spent hard earned money on 2 hd4870's. Using Catalyst drivers before 8.10 I had no problems. Im down to having to use 1 damn crossfire bridge as using 2 under 8.11 or 8.12 just gives me bsod. The usual atimkd bsod garbage. For ****'s sake....my Win7 beta rig using the win7 cats are 100% more stable than the SHIT fight I have with my main rig and Crossfire. Main rig specs - Q6600, 4 gig ram, 2 Palit 4870's in CF, Seasonic 700w, Vista 64 SP1, Cats 8.11. BSOD !! My open air rig - Q6600, 4 gigs ram, HD3870, Win 7 beta, 700wPsu, Cats 8.12 win7 betas. NO PROBLEMS WITH THIS SETUP ! My LAN Rig consists of E8400, 4 gigs ram, HD3870X2, Toughpower 750w, Vista 64 SP1, Cats 8.11 - NO PROBLEMS WITH THIS SETUP ! Obviously Ati/Amd dont give a ***** ! Well **** YOU ATI/AMD !!!!!! Ive had enough of their PISS POOR product support. Do you expect Me to run 1 4870 when I spent money on a Crossfire supported mainboard ???