I'm on windows right now and the click scroll is doing auto scroll just fine.
Maybe I don't word it properly but what I want to do when I click on the scroll is to have it scroll up and down as I move the cursor and I can't seem to do that on OSX.
The Logitech Setpoint drivers are crap. Get rid of them, thoroughly.
Install SteerMouse. You can set any mouse button to just about any function you want.
Nope, doesn't have the autoscroll function for middle scroll button. What's up with OSX?