I've just installed an Apple TV, but I'm having a strange issue with connecting with Airplay: I have a PC running iTunes, and an iPhone 3GS. Everything has newest software. Problem: If I connect the Apple TV via LAN cable, I can stream to it from iTunes, but not from the phone. If I connect it via Wifi, I can stream from both iTunes and the phone perfectly. Shouldn't I be able to stream from the phone, even though the Apple TV is connected via cable? (I could of course just go with the wifi connection, but I'm trying to keep as much as possible cabled, for reliability).