I have a 7950GT on a K8NGMF9 Gigabyte mobo, Vista 5744 RC2 and a very similar problem. In the device manager I have a ! next to my video card, and under the properties of the video card, I get this error, "This device cannot find enough free resources that it can use. (Code 12)"
Also it states the location as being "PCI bus 2, device 0, function 0" This card is installed in the PCI E slot so this could be the problem.
Anybody got any ideas on a fix?
ALSO people who also have this problem post up your your card, mobo, and vista version, maybe we can come up with a fix for this.
Feel free to msg me on AIM: ThinkThankPunk