LOGITECH MARBLE FX TRACKMAN TRACKBALL OPTICAL WIRELESS

[aurelio]

(12-24-2013 04:23 AM)htom trites Wrote:  I have several of these*, PS/2, USB, wireless. Lack of cursor has always been due to dirt. There's a ring around the ball with a black spot. That's a hole for you to use a paper clip to rotate the ring, freeing the ball. Wipe out the inside with Q-tips. Reassemble. Use.

*on third reading of the title, I have the Trackman Marble Mouse, with has the marble size ball. I'm not sure which you have, but the larger Trackman Trackball is mechanically similar.

thank-you very much for the tip, just I'll be back to home I'll ceck!!