The Game Manager is a source of great power. If you use it correctly, it will give you Quick access to great games. If you use it wrongfully, it will crash your computer.
HowTo: Basically do the tasks given to you and then press play when you find the proper game then you are set!
Note: After launching quake3 and returning to the finder you may expierience about 40 seconds of lag.
Note: Wrongfully is anything microsoft. Although the bug might not be in game manager there is bound to be one in the microsoft program.