One zone is powered on, but the sound is coming through a different zone

Description of Problem:

When a CasaTunes zone is powered on with music selected:

1. The music is playing in some of the other zones, OR
2. There is overlapping music playing in the selected zone.

Solution: Disable Enhancments (Sound Effects) in Windows

1. Right click the speaker icon at the bottom of the Windows screen, and click Playback devices.
2. Select “Speakers (Realtek High Definition Audio)”.
3. Click on Properties, and then the Enhancements tab.
4. Verify that the "Disable all enhancements" box is checked (it will say "Disable all sound effects" in Windows 7).