Comment 3 for bug 660700

A bit more thinking and googling about middle button rather than copy/paste and I found this:
http://ubuntuforums.org/showthread.php?t=1603373

xinput test 9 (my touchpad device) shows that both left and middle buttons map to button 1.

The temporary fix for this via: xinput set-button-map 9 1 2 3
did not change this behavior at all, and test still shows the mapping of 1 for middle button.