If you are using CasaTunes with Windows Home, 2003, or 2008 Server
You will need to set an application setting in the CasaTunes configuration file:
1. Stop the CasaTunes Windows Service using the Services manager
2. Start Notepad
3. Open the file C:\Program Files\CasaTools\CasaTunes2\CasaTunesSvc.exe.config
4. Find the application setting OverrideSpeakerCount
5. Change the value from false to true
6. Restart the CasaTunes Windows Service using the Services manager