Thanks guys, but still no joy. I'll try again tomorrow. BIAB does list my vocalist pro (usb) under midi outs, so if I choose that and not select dxi it will get me through tonight's gig with my midi harmony. I'll just have to stick with songs that only use real tracks (or take the time to change the midi options for the songs with both realtracks and midi).
I really appreciate you taking the time to help!
Mike