I'm frustrated with my main apple TV (2) which is connected to my living room TV. After the latest update no matter what I do it say's I'm putting in the wrong password and/or account name for itunes sharing and to rent movies from itunes. I rebooted twice, turned off my imac, tured off itunes, re set my router, reset my broadband. All I can do is air play from my ipad/iphone but the amin function of the atv is broken. The apple TV 2 upstairs also was updated but it logs into itunes Ok. Anyone any ideas- This apple TV is FLAKY to say the least, so temperemental so UN Apple.