Thanks for your response...but that's not true....

I've always been able to hear my keyboard triggering the VST/DXI synth without hitting playback or record....And I was able to do it in BIAB 2016 until last week...Now I do have to hit either playback or record to hear it.

I know I must have hit some dialog box that won't let me hear the thru..... but again I'm at a loss