Functionality lost with latest patch



From Fudzilla:

With the release by Apple of the 10.9.2 OS X update, users have taken to the Apple Support Forums in droves to report that the update breaks the AirPlay Mirror and the extension of desktops to external displays. Apple users as one can understand are pretty unhappy about this development.

The 10.9.2 update was the patch that offered a number of security related fixes to address a number of issues like the SSL security flaw, erratic Mail behavior, SMB2 reliability and others. In addition the update added FaceTime Audio only calling and iMessage user blocking which was apparently a very much requested feature.

  10.9.2 OS X update breaks AirPlay