Windows 7: W7 64Bit-4 x Monitors HELP

Hi Guys,

Hope this is the right place to post this:-)

I am having a problem running 4 LCD monitors on a Windows 7 64 OS. I dont know if my problem is hardware or software related.

I had my computer built by a good company...I am building a FSX home built simulator so need a fast computer that can take up to 4 monitors. My problem is :

When I play on FSX or just after playing the two monitors plugged into my top video card will go into sleep mode. The only way to get them out is reboot. Sometimes it can take a couple power resets to get back into windows.

What I have done:

1. Fresh drivers for all hardware
2. Reinstalled Windows 7 (3 times!)
3. Changed from ATI 5970 cards to Nivida 480 cards
4. Changed EVGA X58 MB
5. Changed Corsair PS
6. Plugged the monitors into different video cards
7. Changed the surg protect
8. Updated the BIOS
The computer is back with company that made it...Im at a loss as to what could be causing this. The only computer hardware we havent changed is , Memory and CPU.

Hope somone can help:-)

Thanks

Chris

Replaced EVGA MB with Asus Rap Extreme 3 MB and all good now!!!
Guess EVGA MB didnt like 4 monitors with 2 Graphics card. The Asus MB is a lot faster and stable.

CD