I have finaly got my Yammy A2 and iv'e got a problem with it allready!... my DVD (LG 2330p) has only got coaxial digital out so i have plugged this into the DVD RF digital input on the A2. no sound is output at all and the amp can not 'see' the connection. if i plug it into the CD RF in it works just fine switching to DD. what am i doing wrong?? Cheers Taz.