Yeah, as stated, stick with 32bit OS.... Just built a new PC, and used a copy of XP64 bit I got from a friend who didn't need it (yes, legit copy), and my DVD burner isn't supported. So, I just ordered a new burner. Also, I get random lockups in WoW now, but I think it might just need a re-install.... not sure, not enough time to re-install...