Hi Don, I'm also having trouble using a conventional mouse due to arthritis in my wrist. I was lucky enough to come across a "vertical mouse" made by Evoluent - www.evoluent.com - which allows you to grip the mouse with your hand in an upright position. It's made life much easier for me. Don't know if it will help you, but it could be worth having a look.


tony
Lenovo lappie, 4Gb RAM, 500Gb HD
Ubuntu 12.04
Running BIAB under WINE