I have 3 monitors set up at my workstation and there are are couple of faint lines that move up each screen. They are about 2 inches thick and are not any color really they are just lighter than the rest of the screen then darker. I have tried booting into safe mode to see if it was a video driver issue but all that did was make the lines move faster and in the opposite direction. I am using an ATI Radeon HD 5570 video card if that is any help.
(Not sure if this is the right place to put this question. I'm assuming it is a graphics card issue)
They are Dell monitors. S1909WX I think. Could there be a problem with the power supply? I did not install the card and power supply, but I am assuming the person that put it in only used the stock PSU.