Close to every 30-45 minutes my screen will freeze then seconds later put me on my desktop but the thing is that I can still do everything in game but see. When it puts me on my desktop I still receive audio from in game and i can still walk, shoot and do everything that I can do normally but my screen is frozen on my desktop. Even when I alt-tab out and back in it leaves me on my desktop. The only way for me to fix this issue is to access task manager and end dayz. After I relaunch it works fine for 30-45 minutes then it happens again. I have tested this on every most video settings and it still happens. Whether I am in a city or the middle of the wilderness doesn't seem to be a contributing factor.