Question Flashing pixels on monitor when set to 144hz

Mar 12, 2019
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I have just bought an Acer GN246HL 144Hz monitor and when I set the refresh rate to 144Hz there are red pixels flashing all over the screen, it is perfectly fine on 60Hz and I currently have it connected with a DVI dual-link cable. I originally thought it may be the driver as it was only showing up as Generic PnP monitor and I resolved that by disabling signature checking and downloading the driver from the Acer website but it has not fixed the issue, I have updated my graphics drivers and updated windows but the problem persists, any suggestions would be appreciated, thanks.

Screenshot - http://prntscr.com/p0en5t
 

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