It just happened again except Sonar didn't freeze this time. I just stopped getting sound. The Dim Pro track's volume meter was maxing out and unalterable Checked the task manager and I had WAY more than enough RAM. I tried removing the instance and reinserting it but no dice. I had to shut down Sonar and reopen it to get a signal again. So something weird is happening. This time I hadn't gone through nearly as many sounds. Oh well. If it gets in my way I'll get a hold of tech support... and thanks, scook. If I'm gonna just mess around I'll try it in standalone.