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ATI V4800 running Dell 3007WFP HC monitor issues.  Why do I get pixely horizontal lines ever so often?

Question asked by jimiz on Sep 19, 2016
Latest reply on Sep 21, 2016 by fsadough

I installed the V4800 in my computer.  It has Windows 8.1 Pro, Xean E31230 @ 3.2 GHz and 16 GB ram.   The screen looks great most of the time.  Every now and then I get these horizontal lines, seems like flashy pixels really but in a row maybe 1-2 inch wide.  I have the latest updates for the card so not sure why this is happening. I was going to replace cable (a dual link DVI is already in place) but I noticed that I can make the lines going away by just altering the setting within AMD FirePro Control Center.  If I switch (either on or off) the Alternate DVI operational mode, the lines go away for a period of time. They do come back though.


Has anyone had similar issues or some advice?  Thank you in advance!