diff --git a/bin/keyboardcomposer b/bin/keyboardcomposer
--- a/bin/keyboardcomposer
+++ b/bin/keyboardcomposer
@@ -551,6 +551,7 @@ class Sliders(BCF2000):
                 break
 
         self.kc = kc
+        log.info('found sliders on %s', dev)
     def valueIn(self, name, value):
         kc = self.kc
         if name.startswith("slider"):
@@ -633,4 +634,4 @@ if __name__ == "__main__":
 
 #    prof.watchPoint("/usr/lib/python2.4/site-packages/rdflib-2.3.3-py2.4-linux-i686.egg/rdflib/Graph.py", 615)
 
-    prof.run(reactor.run, profile=False)
+    prof.run(reactor.run, profile=None)
diff --git a/light9/effecteval/effectloop.py b/light9/effecteval/effectloop.py
--- a/light9/effecteval/effectloop.py
+++ b/light9/effecteval/effectloop.py
@@ -46,11 +46,13 @@ class EffectLoop(object):
 
     def setEffects(self):
         self.currentEffects = []
+        log.info('setEffects currentSong=%s', self.currentSong)
         if self.currentSong is None:
             return
         
         for effectUri in self.graph.objects(self.currentSong, L9['effect']):
             self.currentEffects.append(EffectNode(self.graph, effectUri))
+        log.info('now we have %s effects', len(self.currentEffects))
         
     @inlineCallbacks
     def getSongTime(self):
@@ -147,6 +149,8 @@ class EffectLoop(object):
                 if now > self.lastErrorLog + 5:
                     log.error("effect %s: %s" % (e.uri, exc))
                     self.lastErrorLog = now
+        log.debug('eval %s effects, got %s outputs', len(self.currentEffects), len(outputs))
+                    
         return outputs
         
     def logLevels(self, now, out):