Thanks to all. I have checked the website SoupDragon recommended. I am implementing all recommendations.

I am having degenerative problems with my upper spine. I guess that 10 pounds of weight explains why my neck is so very sensitive to my head being, in any way, out of best alignment. One doctor told me it creates "shearing force."

Mainly, it seems that staying at the computer too long is going to create problems no matter how well you arrange everything. I've sure had a tendency to do that.

I've tried the ice on my right elbow, which helps my epicondylitis. Today, I'm going to try it on my neck, which is already so achy after not much time at the computer.

I guess comfort problems at the computer are not uncommon. Thanks all.