Monitor has faint horizontal line that moves vertical on screen
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)
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I think you have diagnosed the problem properly.
If the issue arose on a single monitor, then I would suspect a monitor defect. But not on all three.
I think it is time to RMA or replace the graphics card.
Are you running these monitors in an eyefinity display?
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.
I am not really sure what eyefinity is. The tech person(who does not work at the office) installed the CCC program. I dont know if this comes with all ATI cards or not