Importing registry keys, might be risky and might not work, it could also disable usb boot stuff, could re-enable it later though. I'd rather find other solution, cause this registry import trick is untested.

I can vaguely remember some PCI scanning tool that scans the system or something, not sure if I used it back then to diagnose the problem.

It's not on my current harddisk, maybe it's on old harddisks, can't remember but is on old, sector damaged harddisks... hmmm

Can't remember me re-installing windows x64, it should be on here if I used it... I do so a pci latency tool on my windows xp x64 edition.

Not sure if windows x64 edition had same pci bridge problem... hmmm...

Bye for now,
Skybuck.