welllllll, the top button (well both buttons as a matter of fact) defaults to alt (or at least it did for me), so if you aren't using alt for something else you can just leave it as that. What did before my damn mouse started crashing my damn computer (RRRRRRR) was bind my bottom button to the backspace button so i could still use it for internet explorer (pretty cheesy i know, but i was getting used to it /~unreal/ubb/html/smile.gif) so yah, that is just my take on the whole intellimouse thing
(by the way, i LOVVVEEEEEE that mouse, it just killllllllls my computer, i hate it!! it makes me so mad!!!!! i just want to go kill people, but i can't use my mouse to kill people, then i want to kill people even more!!!!!!!!!!!!!!! WHAAAAAAAAAAAAAAAA *pant pant pant*)
sorry, i just get annoyed at these things especially when i spend 70 DOLLARS!!!!!!
ummmm WAnk??