Fresh install of Windows Server 2008 x64 Enterprise.
Still as a workgroup, not joined to a domain.
Added the hyper-V role, created a guest machine. Mounted the windows server 2k3 ISO and started it up. I can see the setup screen in the preview but the guest console window says "Connect to guestmachine..." for about 30 seconds and then throws an ugly error saying it can't connect.
Also, the machine is configured for 4 CPUs and it's using 25% cpu at an install setup screen. It's been at ~25% for 20 minutes or so now.