THANKS SO MUCH, without this guide i would have surely had days of additional agony trying to get this to work, instead I only had a day before i found it and half a day until i figured out I have to use the 6.67 drivers you link to. Nevertheless, it works I'm using a Biostar NF4UL-9 with nForce4 Ultra, an AMD64, the latest BIOS from the Biostar website, and two Maxtor 200GB SATAs in RAID 0.