http://arstechnica.com/gaming/news/2...ting-today.ars
Gears of War DRM screwup makes PC version unplayable
It seems that the DRM on Gears of War came with a built-in shut off date: the digital certificate for the game was only good until January 28, 2009. Now that the game fails to work unless you adjust your system's clock, what's Epic's response? "We're working on it."