Yipes, my right wrist is hurting as badly as if someone tried to twist my hand off. I think it is due to the ultimate punitude of my latest Mighty Mouse. It is mighty in its elegance, but not in terms of strength. It is better called a Flimsy Mouse on that score. Believe it or not I had trained myself to use a light touch on this mouse. It was actually restful. I think, though, that its sudden unwillingness to scroll down, forcing me to keep my finger down on scroll bars over the last 36 hours, has blown out my wrist. I'm loath to gripe to Steve Jobs, but, well, this is turning into a damn personal injury cause of action!