so I got a new hp omen 870-095na desktop and every so often while I am playing my games; its only happend while ive been playing War Thunder. My screen turns green and I have to restart my pc to fix it. it is just a plain green screen, with no writing on. I am using my tv as my monitor at the moment with a hdmi cable, I wonder if that is it. could you please tell me why this happens and what I can do to stop it happening again. i downloaded a program and my GPU is a AMD radeon R9 200 series and while i play War Thunder it runs at 67 degres celcius.