five0ne

i`m having a wierd problem with the game atm. I have played DayZ for a few months, then all of a sudden a few days ago when i logged in the screen was just black, i can hear the menu sounds but there is no image. I have deleted the .cfg file and now i can start the game, it goes into default 800x600 resolution. However, every time i try to change the resolution the screen just goes black again and i can`t do anything else until i delete .cfg again. I have tried both ways that are stated in the main post, still nothing. I have reverted to an older version of my GFX driver, nothing. I basically tried everything i could think of and find on forums. Can anyone help with this? My GFX card is nVidia GeForce GTX 660. I would like to mention that i have not changed anything regarding the game or my drivers since i last played it and it worked.