That's good to hear, but there's just one thing that bothers me... As far as I know with XP raid was not "officially" available. What I mean is that it was included, but not enabled. There was an article on tomshardware on how to enable its functionality. I tried doing that on an XP box (to mirror a partition) and after modifying the required files with a hex editor, the OS would no longer boot properly so I had to restore the original files, thus no raid I hope Vista will be software raid ready out of the box and will not require additional tinkering with the system files like in the XP case.