I've just Got a Audio Extreme 5.1 Sound Card For My Cube Pc,
And My Question Is When I Use My Optical SPDIF out I can only get 3 speakers going left/right And Centre but no rear channel with my yammaha amp. It say's in the manual that SPDIF Out only works with 2 speakers.
Is this the case or is there some way i can use SPDIF out and get rear speakers going ?

Thanks.