I bought the new apple tv a couple of weeks ago and am just getting around to hooking it up. I'm trying to mirror my. Ipad 2 through the ATV. The iPad doesn't show the AirPlay icon anywhere...not in the settings bar...not in videos or iTunes or sideshows. I have rebooted the iPad several times and the apple tv and even the router. No luck. I need to use this to teach from my iPad. Can anyone help me? Thanks.