Environment: Windows 7 64 Kontakt 4.1 64 Sonar 8.5 64 Garritan Marching Band with Aria Player 64 Soundblaster Audigy Z2 card Using Kontakt and Garritan via VST plugin The problem I'm encountering is that the Garritan tracks will spontaneously stop sounding. They all stop at once. I can have them working after fresh reloads, play one solo over and over, but once I play the whole piece the Garritan tracks go silent, and even when I bring up Aria through the synth rack, I still get nothing unless I reload the multi from the COMBs selection. Restarting the engine doesn't help. If I freeze the synth, then I don't get the problem, but with the synth frozen I can't do reasonable composition. I need to go back and forth from composition to playing. I wondered if I had some kind of crossed up bank change events, but right now I'm not using any bank change events. One other thing; the level indicators are moving for the GMB instruments even though sound isn't generating.