Airport Express is currently turned on with Airplay enabled through Airport Utility ver 6.2. But couldn't swith to Airplay through Preference/Sound/Airport Express.
Please help. Thanks.
iMac (21.5-inch Late 2009), OS X Mountain Lion (10.8.3)
About AirPlay and Airplay Mirroring
AirPlay Mirroring requires a second-generation Apple TV or later, and is supported on the following Mac models: iMac (Mid 2011 or newer), Mac mini (Mid 2011 or newer), MacBook Air (Mid 2011 or newer), and MacBook Pro (Early 2011 or newer). For non-qualifying Macs you can try using Air Parrot.
Several Apple Articles Regarding AirPlay
Apple TV (2nd and 3rd gen)- How to use AirPlay Mirroring
How to set up and configure AirPort Express for AirPlay and iTunes
About AirPlay Mirroring in OS X Mountain Lion
iTunes 10- About playing music with AirPlay
Troubleshooting AirPlay and AirPlay Mirroring
Thanks to the $15 Beamer, AirPlay streaming is still possible on Macs that do not support Airplay and mirroring.
Another solution is the Air Parrot.
Airplay won't work
