Using Beta 3120 RC1 I tried to install a new VM with Windows XP. I have done this successfully with earlier versions of Parallels, but this time the windows installer claimed that the manifest file was corrupt. I rebooted the VM several times, same thing. So I copied the CD to an ISO image, set the VMs CD to point to this and everything worked. - Joe
I originally install WinXP with whatever the latest official release is. I then upgraded to the first 2 betas and experienced few problems. 3120 is the first beta I've tried to re-install windowns with.