Hi, I didn't have any problems installing Windows 2000 and it runs VERY fast and VERY stable. I installed it on my ATA66 HDD on the Promise controller, too. No RAID setup yet, though. The ONLY problem that I have with it is that my system locks up when I transfer files over my network. I've been told that I should take my NIC out of slot 4 and put it in slot 2. I've narrowed it down, and it doesn't seem to be a software/OS problem, but yet a hardware conflict or BIOS problem. I've contacted several people with this problem and it isn't just me who's having it. 🙁