I have just purchased a new apple tv 2 , i have connected everything up and it all works ok except that i am unable to play sound through my Denon S-301 home theatre it will only play through the tv speakers via the HDMI connection, i really would like to play the sound through my home theatre system but seem unable to get it to work through the optical digital connection, the old apple tv was ok as it had phono connections but the 2nd gen does not,can anyone please help me.