Previous question: Problem with mouse pointer jumping up and down very quickly as if controlled by someone high on caffeine and jittery wanting to drive me crazy :)...I have no control over it. It will move side to side and leave the screen even...just have to be patient and try to 'catch it' when it reappears. The original question concerning this problem failed to mention that I use a Lenova ThinkPad laptop computer with a touchpad mouse. Thank you for the 2 replies I have received...would the recommendation still apply? Thank you.