Well I tried this and the same thing happens. However, I know the original xp cd is ok because I can install that on a single drive when I disable RAID. My guess is that the nlite cd's that I have made (I went through the process a few times) are ok, but for some reason the computer doesn't seem to like it when I try to load the os in RAID mode. Perhaps this will give you a better idea as to a direction I should take. I know RAID works on this computer because that is the way it was set up when I got it, but this is driving me insane. I could just set it up without RAID but I would prefer not to do that.