Hey, I want to know if can someone help me to figure out my problem. I am student to architecture and need the middle button for cad files like autocad, sketchup etc... For mac I have the magicprefs app - that enable the middle button. but for windows (run with bootcamp with the 5.1 driver) I don׳t see any solution for this. (and a lot of topic with this problem). I happy to see answer from you. thank you very much.