After installing snow leopard, I cannot get my apple TV to pop up on iTunes, nor can I get home sharing to work. Both home sharings are turned on (itunes and apple tv). The apple tv is connected to my wifi as I can get netflix, youtube, et al, but I cant recognize my iMac library. I have 10.6.4 installed and the latest version of iTunes. I unplugged my apple tv and replugged it in to no avail. Any help would be greatly appreciated. THANKS!!!