--- traverso-0.40.0/src/engine/JackDriver.cpp~	2007-03-19 04:18:57.000000000 -0700
+++ traverso-0.40.0/src/engine/JackDriver.cpp	2007-06-13 16:50:16.000000000 -0700
@@ -234,7 +234,7 @@
 int JackDriver::process_callback (nframes_t nframes)
 {
         device->run_cycle( nframes, 0.0);
-        return 1;
+        return 0;
 }
 
 // Is there a way to get the device name from Jack? Can't find it :-(