Bad Experience: Ergonomics

Couple of months ago I bought a Microsoft Ergonomic Keyboard and a Logitech Wireless Trackball M570 to make my computer experience more comfortable. However, I started feeling pain on my wrist like I never had before. I didn't want to believe that these devices were causing pain so I wore wrist braces to see if it would help and it didn't. I pulled out my non-ergonomic keyboard and regular mouse on 04/25/11 and the pain has diminished. I have since sold my ergonomic keyboard and trackball to an advertised fool. What I do now is put a pillow under my arm when typing and that seems to solve the problem.