FSX freezing problem with 7600GT / A8N32-SLI- fixed hopefully.

First I'd be interested in anyone who runs the above motherboard and video card combo. Have you had video and subsequent sound freezes ( video freezes for about 20-30 seconds, sound enters sound loop then eventually freezes too, then system unfreezes to either start another freeze cycle, or runs OK for a bit before happening again)?.I've tried first replacing my 350W PSU for a 500W one, ran memtest86 and found that my Corsair 3500LL 2X 1GB was faulty (now being RMA's back, I'm using 2X 512MB PC3200 Crucial until I get the Corsair stuff returned).Tried various cooling, driver and BIOS settings, lockups still occurred. Then I read last night on some forums (search Yahoo "7600 freeze") of others having exactly the issue I was in other intensive games. I tonight changed back to my older 6600GT PCI-e card and all seems OK- other than I now have the performance issues of the 6600GT vs. 7600GT, and 128MB of RAM compared to 256MB. But- so far, no freezes!I have also read where similar issues with the A8N32-SLI may be fixed (although not with the 7600GT card) by moving the single GPU to the black PCI-e socket, not the blue (I had mine in the blue, as is now the 6600GT). I may try moving back to the black socket with my 7600GT on the weekend.Anyway- I would be most interested if anyone has any experience with this main board, GPU and this freezing problem, and which slot the GPU is into.Thanks,Bruce.