Build 1908 hangs on Mac Pro 3Ghz-4Gig RAM. I just installed build 1908. Installed without any errors (and it reset RAM to 4-Gig correctly), but when I tried to run the VM with Windows XP, system hangs. Have to hard re-boot each time. Tried a second time, putting the system to sleep before running VM, and still go the same problem. It appears as if it is trying to load windows when it just locks up the entire system.