Yeah I agree jlavin. I dont use xp 64 bit unless it is for something like this kind of stuff http://www.planetx64.com/index.php?option=...&id=5&Itemid=52 But that is the only real benefit of x64 I see is that if you have properly written software and drivers for the 64 bit platform you are going to see huge gains in performance. Other than that, the 64 bit is just fun for enthusiastic people and it supposedly manages memory and resources better but it is a moot point since you cant do much with it. For example the Starforce drivers are a pain in the a** as a lot of games I like to play are protected using Starforce. As for your problem, I am confused. You ordered 64 bit XP and now you want to revert to 32 bit so you ordered a copy of that as well. Err...cant you back up your stuff?