diff --git a/Builds/MacOSX/Dexed.xcodeproj/project.xcworkspace/xcuserdata/asb2m10.xcuserdatad/UserInterfaceState.xcuserstate b/Builds/MacOSX/Dexed.xcodeproj/project.xcworkspace/xcuserdata/asb2m10.xcuserdatad/UserInterfaceState.xcuserstate
index d21650d..89b3c0d 100644
Binary files a/Builds/MacOSX/Dexed.xcodeproj/project.xcworkspace/xcuserdata/asb2m10.xcuserdatad/UserInterfaceState.xcuserstate and b/Builds/MacOSX/Dexed.xcodeproj/project.xcworkspace/xcuserdata/asb2m10.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/Source/PluginEditor.cpp b/Source/PluginEditor.cpp
index 304c1f6..8045297 100644
--- a/Source/PluginEditor.cpp
+++ b/Source/PluginEditor.cpp
@@ -138,6 +138,9 @@ void DexedAudioProcessorEditor::paint (Graphics& g) {
 void DexedAudioProcessorEditor::buttonClicked(Button *buttonThatWasClicked) {
     if (buttonThatWasClicked == cartButton) {
         int result = cartPopup.show();
+        if ( result < 1 )
+            return;
+        
         processor->loadBuiltin(result-1);
         processor->setCurrentProgram(0);
         rebuildProgramCombobox();
@@ -214,7 +217,12 @@ void DexedAudioProcessorEditor::comboBoxChanged (ComboBox* comboBoxThatHasChange
     processor->updateHostDisplay();
 }
 
-void DexedAudioProcessorEditor::timerCallback() {    
+void DexedAudioProcessorEditor::timerCallback() {
+    if ( processor->forceRefreshUI ) {
+        processor->forceRefreshUI = false;
+        updateUI();
+    }
+    
     if ( ! processor->peekVoiceStatus() )
         return;
 
diff --git a/Source/PluginFx.cpp b/Source/PluginFx.cpp
index 6acbf34..4e6180f 100644
--- a/Source/PluginFx.cpp
+++ b/Source/PluginFx.cpp
@@ -115,14 +115,13 @@ void PluginFx::process(float *work, int sampleSize) {
     
     // maybe smooth this value
     float g = rCutoff;
-    
+    float lpc = g / (1 + g);
+
     for(int i=0; i < sampleSize; i++ ) {
         float s = work[i];
 		s = s - 0.45*tptlpupw(c,s,15,sampleRateInv);
         s = tptpc(d,s,bright);
         
-        float lpc = g / (1 + g);
-        
         float y0 = NR24(s,g,lpc);
         
         //first low pass in cascade
diff --git a/Source/PluginParam.cpp b/Source/PluginParam.cpp
index dbcdf77..6cc36d7 100644
--- a/Source/PluginParam.cpp
+++ b/Source/PluginParam.cpp
@@ -130,6 +130,7 @@ void CtrlDX::setValueHost(float f) {
 }
 
 void CtrlDX::setValue(int v) {
+    TRACE("setting value %d %d", dxOffset, v);
     if (v >= steps) {
         TRACE("WARNING: value too big %s : %d", label.toRawUTF8(), v);
         v = steps - 1;
@@ -137,7 +138,7 @@ void CtrlDX::setValue(int v) {
     dxValue = v;
     if (dxOffset >= 0) {
         if (parent != NULL)
-            parent->setDxValue(dxOffset, v);
+            parent->setDxValue(dxOffset, dxValue);
     }
 }
 
@@ -385,6 +386,7 @@ float DexedAudioProcessor::getParameter(int index) {
 
 void DexedAudioProcessor::setParameter(int index, float newValue) {
     ctrl[index]->setValueHost(newValue);
+    forceRefreshUI = true;
 }
 
 int DexedAudioProcessor::getNumPrograms() {
diff --git a/Source/PluginProcessor.h b/Source/PluginProcessor.h
index 70d9eae..dfcb2e6 100644
--- a/Source/PluginProcessor.h
+++ b/Source/PluginProcessor.h
@@ -112,6 +112,8 @@ public :
     CartridgeManager cartManager;
     VoiceStatus voiceStatus;
     
+    bool forceRefreshUI;
+    
     Array<Ctrl*> ctrl;
 
     OperatorCtrl opCtrl[6];