Hi CJ,

I don't use any driver apart from the standard stuff that OS X has under the hood. The left and right buttons just work. The Scroll wheel also just works, including tilting it left and right to scroll sideways.

That only leave the thumb buttons which OS X addresses as button 4 and button 5 (4 on left). I have those set up to activate exposee functionality which I did by going to the exposee panel in the system preferences and setting button 4 to f9 and button 5 to f10.

Hope that helps,

Bart.