There are some icons for 'stereo out' which I want to use by sending Monitor C & D to another system. The icon shows C/D but under Monitor only C can be regulated. Also the D does not come through and is inactive. This is also for 'Computer out', 'Mix out', 'record out'.
What am I doing wrong? Or how can I send the stereo out to C and D monitor and can regulate each channel individually?