I would consider buying a new one if I were you, monitors are seprate machines and basically has no set of drivers, at first I would have blamed your grqaphics card (assuminbg your not using on-board) and told you to replace iot but as its done the same thing on another computer I would recommend buying a new monitor. At this time if it yhas a 3 year warrenty or one that is still in use its worth redeeming it now
