Vista won't boot when emulating

Just installed Windows Vista the third HDD in my Mac Pro, boots up fine, however I can't seem to get it to work through Parallels Desktop or VMWare Fusion (using the bootcamp install).


Both emulators start Vista and then I get Windows Boot Manager telling me Windows failed to start.

"Windows failed to load because the firmware (BIOS) is not ACPI compatible"

Its Vista Ultimate.

I think what happened was the Virtual Machine I created in Parallels was for XP not Vista. I have created a new one (for Vista) which seems to be working.

Fusion is still not working, different error message:

royal.sys An was made to write to read-only memory.