>Could you make a remote diagnosis and save me a trip to the doctor? My right forearm on the right side near the elbow has been very sore for the past couple of months. I'm thinking it could be the amount of mousing I do every day, and the fact that I'm on 3 or 4 different systems throughout the day.
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>You mentioned resting the elbows on the table and supporting the wrist. What do you mean by supporting the wrist? Any online ergo info you would recommend?

Get a chair with armrests. Keep your elbows on the armrests. That's step one. Your arms shouldn't be hanging in the air.

Step 2 is keeping yourself from bending your wrist heavily to use the mouse. A wrist rest in front of the mouse pad (or as part of it) helps a lot. My keyboard arm has it built in. It keeps me from sitting with my hand on the mouse and my wrist bent at 45 or 60 degrees while I'm reading.

Tamar