How about, I go to the experts of yoreparo since I have an 18.5-inch Benq senseyephoto LCD moniotor that suddenly began to show horizontal white lines on the whole screen, began to do it gradually and somewhat sporadically, but now they are shown all the time Affecting visibility. I clarify that it is not a problem of the CPU or the VGA cable since I tried it with another monitor. I leave a photo in case someone has had a similar case.