I googled, i asked jeeves, i yahoo'ed no luck xD You need to train in the ways of Google... Assuming you have 32-bit Windows XP... http://www.microsoft.com/hardware/mouseand...%20Windows%20XP If not, go here: http://www.microsoft.com/hardware/mouseand...d/Download.mspx haha thanks, i actually found this just wasnt 100% sure if it was the right one