no apple tv after installing mountain lion
I just downloaded Mountain Lion and when I looked to get the mirroring of my desktop there was no apple tv icon.
Welcome to the Apple Support Communities
See > http://support.apple.com/kb/HT5404 Select the AirPlay icon on the menu bar, or go to System Preferences > Displays to turn on AirPlay Mirroring.
If you don't see it, your computer isn't compatible. You have to use a third-party application as AirParrot > http://www.airparrot.com