I had vista running great for about 2 weeks and then this morning I boot up my vm and I get the error that my bios is not acpi compatible. I've searched the forums and all references to this discuss this problem when trying to upgrade an xp machine to vista. This vm was a fresh install of vista and was working perfectly fine. Does anyone have any clues as to how to fix this? all my data and programs are lost if I can't get this to boot.