Reflector for Mac version 1.6.6 is now available. This update removes an AirPlay conflict error popup that prevented some users from using the application. The error is now silently written to the log.
Full release notes for version 1.6.6 can be found here: http://www.airsquirrels.com/reflector/release-notes/mac/
You can download this update by selecting “Check for Updates…” from the Reflector menu. The new version of Reflector can also be downloaded from here: http://www.airsquirrels.com/reflector/download/