NVidia and SLI problems

I'll try this again after posting in another thread.

I am having problems with my new build. Vista or something is causing my computer to not see both video cards. At times Vista will see both cards and run in SLI but 90% of the time it only sees 1 card. Even at times Vista will boot up using generic drivers and not even see my 175.19 drivers. I have checked both cards seperately and both seem to work fine. Here are my specs...

MSI K9N Diamond with latest bios from MSI
AMD Phenom 9600 BE
2x GeForce 7900 GTX in SLI
2x 36 gig WD Raptor HDD in Raid 0
2x 1 gig Corsair Dominator DDR2 800 memory
850 watt power supply
ThermalTake ArmorLcs case with watercooling to GPU's and CPU

Here are links to pics from CPU-Z and GPU-Z

http://img.photobucket.com/albums/v166/310thDiablo/mainboard.jpg
http://img.photobucket.com/albums/v166/310thDiablo/cpu-2300.jpg
http://img.photobucket.com/albums/v166/310thDiablo/memory-2299.jpg
http://img.photobucket.com/albums/v166/310thDiablo/GPU.gif

Any help would be appreciated

wow 48 looks and nobody else has an idea what is wrong either. I am beginning to think it's the video cards.