Strange scroll when pressing the right button using synaptics driver

[Jan Kokemüller]

>     When I press the right button (which is a segregate button) the pad
> also scrolls down. If I disable the synaptics driver, the right button
> doesn't trigger any scroll at all.

I had the same issue. There is a kernel patch available here that works
for me (the one at the bottom):
http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/84411

Good luck,
Jan