Since you can choose this option in the XBox-menu, you actually don't know if an XBox-game support 60Hz or not. So my qestion is, how do you know if a PAL-game for XBox support 60Hz or not? I know that you can see it at Eurogamer.net (if a game support 60Hz or not) in the reviews, but how do they find out which games has the 60Hz-support?