I have been running beta and RC versions of Windows 7 x64 for about 9 months now.

A few weeks ago, I needed to run a seperate copy of Win7 on the same machine so I decided to take the VHD route. I.e. booting directly into a VHD. The means to do this were well documented by Aviraj Ajgekar's block @: AVIRAJ AJGEKAR'S BLOG... : Windows 7: Boot from VHD First Impression: Part 2

The problem began once I attempted to install Windows 7 x64 RTM. For some reason, the hardware recognition is having some issues, most significantly - the display adapter. In the past, the pre-RTM versions recognized the hardware without any issues.

One of the actions that I had to perform as part of the boot to VHD option was to set the DETECTHAL option to ON.
(Please see the link above for more details.)

I have no idea if this is related to the problem or not but no matter what I do, I am still stuck with a "Standard VGA Graphics Adapter" instead on my NVIDIA Quadro 570M.

Any ideas?