Ny partner does admin work for a university and spends an awful lot of time scrolling through web pages and long document. She is getting RSI in her right arm thats very painful. She reckons that a ...

Hi,<BR><BR>I have a Logitech Marble Mouse trackball. It has four buttons, two of which are designed to overcome the lack of the scrolling wheel. One of these buttons scrolls up while the other scrolls ...