Hello, This is not a problem with DayZ itself, but with Arma2. Every time I open it up, it has grey/white geometric shapes pop up and glitch through each other. I have already tried re-installing, but to no avail. I'm considering just deleting steam and both games (The product I bought was the OA and ARMA 2 pack) and never looking back. Unless anyone knows the answer, I guess I wasted $25 :/ Oh right. It even happens on the menus.