Vista sans drivers... tilt and zoom!
I also have a 4000 with my notebook. Love it - only problem is it's a little smallish and makes my hand cramp a little during long sessions. It's a very reliable mouse - but I moved to Vista and I should check back about updated software for it. Not only is there the tilt scrolling but the tiny zoom button on the left side of the mouse body allows you to activate a zoom window and size it to enlarge text on the screen.