Re: Dual Video Card Help
Are they both 7800GT's? If so, no conflicts should occur. Just make sure to use the new Forceware from Nvidia.
INstalling those is pretty straightforward. Unplug power cable and open case. Insert the second video card into the other PCI-e x16 slot. Make sure you have the SLi bridge in place at the top. Then power back on again and see what happens. You may want to touch up on the motherboard manual for speed concerns.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?