to have sonar playback the midi file you would need to re-connect the out cable...when you have done this,play the midi data you have recorded (or any midi file really!!) does it still play with the echo? if not then the problem lies with the midi setup on the va76..if it does then re-check your midi on sonar (and the va76!!)....i have mine setup as previously mentioned...midi in/out to the keyboard (sd1+) local off,and "always echo midi" in sonar off as well....
dennis