CD key install issue with Quake III: Team Arena (Gold Edition).
"Id Software and Activision® have identified a manufacturing defect that occurred in the recent release of Quake III: Gold. Key codes affixed to the Quake III: Team Arena portion of the product are not being accepted during the installation process. We apologize for the inconvenience."
The link below takes you to a form which allows you to enter your key and get a new working one.
News source: Activision