I've been scouring the internet, and I seem to be the only person to have this problem :/ Basically, the startup is fine, the login, joining and starting a match, only once the match starts, the whole screen is covered in this odd red grain effect. I don't know as much as I probably should about these things, but the first thing that came into my head was a shader problem, but I wouldn't know how to help that. Damn this lack of advanced settings. My system specs are: Intel Core2 quad Q9000 @2.00ghz Windows Vista Home Premium 64bit 4gb DDR2 ATI Radeon HD 4850 (well, the laptop version) I've only ever had a slightly similar problem with Cryostasis, and that was never fixed. I've attached an image to show you what I mean. Please help, because apart from this glitch, the game runs smoothly on every graphics setting. I've tried re-installing the demo.