I recently started playing Doom Eternal and black horizontal lines show up on my screen usually during times with relatively high action happening on screen. They flicker, move vertically, and span the entire screen. They haven't shown up playing any other game recently. I have an Nvidia GeForce 1050ti graphics card and a 60hz monitor using HDMI. This monitor is relatively old and beat up and I dropped it moving it once but I'm not entirely sure whether or not a bad monitor would create a game-specific problem. Has anyone else had a problem like this? Does anyone know a way to fix it?