I've been trying to get borderless windowed mode working all day because I like to alt tab a lot, so I started using this program http://forums.steampowered.com/forums/showthread.php?t=2675769. Every time that I enable the program the render resolution resets and the game gets incredibly blurry. I know the same thing happened in arma 2 but I never found a fix looking on my own. Anyone know how to get around it? I also tried shift window but I couldn't get the game to take up the whole screen, there was always a gap at the bottom.