Or you could upgrade to a full-on trackball. I've been using Logitech Trackman Marbles for the past 8 years or so but a few months ago I upgraded to a Kensingto

Or you could upgrade to a full-on trackball. I've been using Logitech Trackman Marbles for the past 8 years or so but a few months ago I upgraded to a Kensington Slimblade which is amazing.