>I have only the pitiful documentation that came with this beastie and
>it suggests nothing except ms protocol. I systematically tried every
>protocol and haven't got the middle button to be recognized yet.
You could run `od -c /dev/ttyS0` to find out what characters your mouse
is spitting out for each button and for each kind of movement. Make
sure that the middle button is actually generating *some* character(s),
and that they are different so that the middle button can be
distinguished from the other two. Use /dev/ttyS1 for the second serial
port. Maybe your mouse is broken.
"Arguing about predestination is virtually irresistible." --RC Sproul