maestro72x
Oh well now that makes perfect sense lol...
do you know how to send the audio out from the computer to the L-R of the mixer board?
You have a couple of options here depending on what you want to monitor. In the master section there are three buttons under the phones level knob. Top to bottom "2 track 2", "2 track 1", "Dig master - Main master L-R"
With all three up you can monitor channels 17/18 (the main outs) coming back from the computer. You won't be able to monitor any of the board inputs via the L/R buss that way though.
To monitor the main board L/R buss and the main outputs from the computer at the same time, you need that bottom button in the down position (and the others up). In addition the "Dig-Master to L-R" button (just above the headphone out) needs to be down so the LED is lit. That way you'll get the main digital outs back to the board as part of the L-R buss (level control is via the master buss fader in Sonar) and full control over the 16 channels for monitoring as long as their individual channels L-R send buttons are down.
I'm working from memory here so I hope that is accurate, I'll double check when I get back to my studio.
I've had my ZED for a couple of years now and you have got a really great board/interface. Literally every routing that you could imagine is possible as well as being able to add that fantastic EQ in as an outboard EQ. Fantastic bit of kit.
HTH