Has anyone figured this out yet? I tried installing Vista Ultimate 64-bit on my new 8-core Mac Pro, but I too am getting the dreaded "Windows is unable to find a system volume that meets its criteria for installation" no matter how many times I reformat the selected partition and reboot.
I am trying to install it onto a completely separate internal drive, located in bay 3. (Bay 2 is empty but I'm saving that one for a future audio/video drive) The Installer shows "Disk 1 Partition 1" at 200MB (for the Boot Camp partition) and the "Disk 1 Partition 2" for the rest. The latter is the one I keep trying to format and install, but can't get it to work.
There's an article at
http://support.microsoft.com/kb/933925 about this error message, but in their work-around, they want you to click "New" in the Advanced Options, and my "New" is grayed out. Ugh. Then I tried deleting the big partition, but it won't say Unallocated Space, and if I try and reformat then I get an error.
Nice going, Microsoft. Oh wait, I should expect no less from them.
sigh
Any solutions out there?