I've been able to play DayZ with no problems for a couple of months... but recently I've been having some sort of screen(?) issue whenever I play the core DayZ mod. Occasionally, my screen will flash green for about one second before it turns black, where I can't do anything at all. I can hear the ambient noises, but I can't do anything - can't exit to the desktop, can't open any interfaces, can't even transmute iron into gold. It's annoying - I have to do a manual restart in order to get things back to normal. Is it something wrong with my graphics card, or is it something else? Here's some computer specs if they'll help: Memory: 4090MB RAM Processor: Intel Core 2 Duo CPU @2.53 GHz DirectX 11 Display: Nvidia GeForce 9800M GTS In game, I have post-processing effects and shadows disabled, 3D resolution at 1440x900... (idk if this is needed) Any help would be much appreciated.