Guitarzan

I can record & playback fine. I just can't pass-thru the interface from inputs1-6 to outputs1-6. Need to patch outputs to Mackie mixer/PA system, so we can hear our vocals as we record. If I pull the USB cord, the unit goes into pass-thru mode, allowing me to get signal to the Mackie on channels 1-6. I've tried clicking the headphone jack on the track during record.