Hi, just got my rx 560 running yesterday and I was enjoying the performance it was giving me. I wanted to test some games to see what it’s limits are. I tried games like csgo, Kerbal space program and others like minecraft. Minecraft gave me no issues whatsoever but in full screen steam games, either the whole screen would have red blocks and everything would be scrambled, or like in csgo, their would be random artifacting flashing on screen every few second. If I pooped up the window at the top of the screen, these bugs go away, but I can’t run games in full windowed mode with these graphical errors and artifacts. I’m running the GPU through DVI on native 1080p my suspicion is the fact I’m using dvi, but at this point I’m lost. Anyone else with similar experiences with this gpu, please give feedback. I can get screenshots of it upon request. Update: I could also test a flashed gpu with it both inside at the same time but really I’m just troubleshooting Update: another suspect is steam overlay. I’ll try disabling it later. My Mac Pro Genuine 5,1 Nehalem Mac Pro 4 core 2.8 ghz W chip (original) 250 GB Kingston SSD Sapphire pulse RX 560 4gb OS: 10.13.4 Thanks as always.