Windows doesn't boot (Booting from hard drive)

When I try to start Windows Vista Ultimate 64bit with parallels (newest version, OSX 10.5.2), the bootscreen freezes in the very beginning.

After initalizing the CPU and the RAM I get the message "Booting from hard drive", but than nothing else happens anymore. I'm running Vista from a bootcamp partition.

Is this problem already known? What other details can I give you to to make it easier to figure out the problem?

Thanks a lot

 

Windows 64-bit is not supported by Parallels desktop.

 

Oh, that's definitely not what I expected to hear, but it explains why it dosn't work.

Thank's a lot