Z68 Extreme4 Gen3 Video Issues

[Beaverific]

My nvidia GTX 460 is not detected by the motherboard in any of the PCI-E slots. I've updated the BIOS from 1.0 to 1.1 listed on the ASRock website. This did not resolve the issue. I've also played around with the settings in the UEFI. The onboard video seems to work fine. The video card worked fine on my previous build, and I'm nearly positive there was no damage to it during installation into this board. Help!

My e-mail is prog102 at yahoo dot com.

i7-2600k
OCZ Vertex SATAII SSD
G.Skill F3-10666CL9D-8GBRL
Gigabyte GTX 460 1gb
Cooler Master 850W PSU