I searched for days on google and found no answer so I figured I would post my experience so the next guy can benefit. I successfully flashed a BenQ drive with Windows 7 x64 and an AMD SB710 Southbridge chipset using JungleFlasher's guide and iXtreme LT 1.2. Well, mostly a success. The drive came up and flashed just fine. Once flashed however, the chipset no longer recognizes it. The drive works great in the 360, but if you ever need to update, you'll probably need to get the VIA card. Hope this helps someone out.