Hello all. I have a severe problem. Whenever I launch Civ 5, it plays the intro video which I click to skip, after this, the game loads to the main menu, from where it minimizes to desktop. This occurs every few seconds, the longest is two seconds, and the shortest is half a second, whenever I try to maximize the game. It also flickers a black screen before minimizing to desktop. Thie flicking black screen lasts for about a second each time consistently. This makes the game unplayable. There are no mods installed, no alterations, and I have validated the files several times and reinstalled the game. This problem appears to be Civ 5 specific, as Civ 6 and other fullscreen games do not have this problem. I don't think that my firewall is causing it, I've already tried disabling it. Is there anything I can do? Any help would be greatly appreciated.