I recently built a new computer with a Sapphire Pulse RX 590 and two Dell S2419HGF monitors. When I first launched Modern Warfare, it had this glitch effect on the graphics where both screens flicker and random colors show up in random places. It would continue after I had closed the game until I did made some change to graphical settings that would reset it. I'm connected with HDMI cables so I can't get the full 144Hz out of them, but Windows had defaulted to 59Hz. I changed it to 60Hz and playing the game in safe mode had it working. I realized that it had brought the resolution down to 1280x720 so I bumped it up to 1600x900 in a normal launch and the problem was no longer there. I also launched Tekken 7 and it had the same problem. Street Fighter V on the other hand did not. Is this a result of trying to run 60Hz on a 144Hz monitor? Would getting DisplayPort cables and running both displays at 144Hz fix this? Or is this a problem with the graphics card directly? I'm running AMD's newest 04.01 drivers and I'm wondering if that could be the issue as well.