>Trying to get pixel-perfect movement (say, in a drawing program) with a trackball can be frustrating. High levels of acceleration can help. The classic X wind

>Trying to get pixel-perfect movement (say, in a drawing program) with a trackball can be frustrating. High levels of acceleration can help. The classic X windowing system input method has something described as "a more natural and continuous formula, giving precise control for slow motion but big reach for fast motion, and a progressive transition for motions in between." which works really well with my Trackman Marble.