Fred,

>I had a problem with my elbow several months ago. Turned out I was "reaching" too far for my mouse. Moved my mouse pad about 2-3 inches closer to the edge of my keyboard (after clearing enough crap off my desk) and the pain went away.

You might be onto something here. My mouse cable is about 2 or 3 inches too short at my main work area. It's close enough that it's workable, but that could account for the strain and pain. Thanks.