Recently players of Gears of War on PC found the title was no longer able to launch. Epic Games responded to our inquiry regarding what the problem was and what's being done to fix it. The following is from studio vice president Mark Rein.
"The online cheat detection features in Gears of War for Windows are based on digital signatures. Well, we made an embarrassing mistake: we signed the executable with a certificate that expired in a way that broke the game.