i am using saw studio and i can input audio from my hd 24's but i cant get the audio out. i have the audio routed to output 1 and i can visually see the audio on the leds there at the outputs, but i get no sound out from the cards. i have the output routed through a presonus firestudio to a yamaha 02r96 from the optical out of the rme card. i checked that it was seeing signal from one of the hd 24's optical outs. i do get sound into the yamaha this way, just nothing from the computer. i had the computer built for me and the builder said he did not load audio drivers into the computer because he didnt want to cause a conflict with the cards. could this be the problem because i get nothing from windows when i first boot up. there is no sound coming from the sound card either. i tried the outputs from there also. it even has an optical output also.

there is an optical output on the computer soundcard.

i also eliminated the sound cards and went with a third soundcard i had. all are the same soundcards and i also just went with one card and still get nothing out. i can get sound into the computer with this card but nothing out. is there a scenario you could show me that would be optimum for my setup? i have a yamaha 02r96 with an adat card, a presonus firestation with adat in and out, and the computer card has an optical jack also. when i use the yamaha, the yamaha is the master. when i use the presonus, the rme is the master. is it possible that i have three bad cards? if so, how would i check?