I have the Evoluent Vertical Mouse at work and at home. One is wired, the other wireless. Ubuntu maps their buttons differently and it makes me crazy when I switch locations. I use 12.10, but same has applied to every Ubuntu version since 9.10.

The wired mouse is as desired: top finger button is left-click, scroll wheel is middle click and scroll, middle finger button is a right-click.

On the wireless version, bottom finger button is mapped to right-click and the middle finger button is center-click.

I tried tinkering with these instructions, but wound up unable to boot to GUI... had to delete the .conf file to recover: http://denishaine.wordpress.com/2011/12/01/evoluent-mouse-with-ubuntu-11-04-and-11-10/

Help?