I'm trying to retweak my drives now that the new XP OS is installed. I'm following 3ds tweak guide as I did with Win98. With XP I find no settings tab in hardware profiles. I followed the path control panel>system>hardware>device manager>right click on DVD-rom samsung SD-606F.>properties> this brings up the tabs General , Properties, DVD Regions, Volumes, and Driver. No setting tab. Why and how do I enable DAC? Good luck to You all on the contest. I kinda hope one of our college or high school students will get the prize as they are usually the most financially challenged.