Microsoft's newest OS, Vista, has been relegated to waterboy status at the 2008 Olympic Games, while wireless networking won't even play a supporting role in Beijing. Windows XP was chosen to run on all PCs handling chores vital to the Olympic Games, and has been installed on most of the PCs delivered by Lenovo Group. Vista will only be used on PCs in Internet lounges set up for athletes to use during the games. The Olympic Games require mature, stable technologies, said Yang Yuanqing, chairman of Lenovo, during a briefing in Beijing. The Olympic Games aren't a place to try new technologies due to the size and importance of the event, he said. Everything must work smoothly.