Are you loading the nVidia IDE drivers from the 6.39 drivers? I have a MSI SLI board and a Diamodmax 10 250gb not in a RAID configuartion, but just SATA. I wasn't loading the IDE drivers (never liked them in previous versions). I had to reinstall twice because of data corruption. To get it to work, I finally allowed the 6.39 drivers to load the nVidia IDE's, then went into device manager and replaced the IDE drivers with the Standard window ones. XP will keep the nvidia IDE's for the SATA controller automatically, but will change the IDE controller to the standard ones. Then I checked the ADMA and Channel settings for the Maxtor to make sure they were set for SATA II and NCQ. Been over a week and haven't had to reinstall yet. Could just be coincidence, I'll do what works for me.