Vista - Vista Ultimate x64 + NForce 4 + Virtual PC 2007

I installed Virtual PC 2007 last night on Vista Ultimate x64 on an NForce 4
AMD motherboard.

Everything worked fine until reboot, which led to bluescreen, then 2nd
reboot into Vista and my NForce 4 network adapter "was not correctly
configured to use ipv4 or ipv6"

Therefore no network connectivity

Device manager showed a virtual NForce 4 adapter in addition to the physical
controller. Disabling this virtual adapter made no difference.

Uninstalling Virtual PC 2007 put everything back to normal and I can use my
network adapter again.

Any workarounds? I would like to use Virtual PC 2007 but obviously at the
moment I cannot.

I am experiencing the exact same problem on my nForce4 SLI Intel
motherboard running Virtual PC 2007. I was able to fix the problem
temporarily by reinstalling network drivers but that only lasts one
reboot then the same problem is back.

Hopefully someone will post a workaround or news of a hotfix. In the
interim, I have had to uninstall Virtual PC...