According to Dennis Fazio: >Watch your posture and position everyone. I believe the recommended >practice is to keep the forearm and wrist in a straight line when >mousing and the elbow close to your side. >-- >Dennis Fazio Thanks, for the first time in my life i must be doing a physical thing properly, albeit accidentally. my Kensington TurboMouse pro has a modified palm rest,and the arms on the rolling swivel chair leave my right arm rested, so that my arm lays, un-flexed on the arm, and my palm rests on the pad for the trackball... and they throw in 11 buttons, a trackball the size of a cue ball, and great software. ~flipper