diff --git a/mixer/src/Controller_Module.C b/mixer/src/Controller_Module.C
index 9b1235e..09d08c7 100644
--- a/mixer/src/Controller_Module.C
+++ b/mixer/src/Controller_Module.C
@@ -555,6 +555,8 @@ Controller_Module::handle_control_changed ( Port *p )
 
         pan->point( 0 )->azimuth( control_output[0].control_value() );
         pan->point( 0 )->elevation( control_output[1].control_value() );
+
+        pan->redraw();
     }
     else
     {
diff --git a/mixer/src/Module_Parameter_Editor.C b/mixer/src/Module_Parameter_Editor.C
index f521b90..6a29ac4 100644
--- a/mixer/src/Module_Parameter_Editor.C
+++ b/mixer/src/Module_Parameter_Editor.C
@@ -117,8 +117,7 @@ Module_Parameter_Editor::Module_Parameter_Editor ( Module *module ) : Fl_Double_
 
 Module_Parameter_Editor::~Module_Parameter_Editor ( )
 {
-
-
+    controls_by_port.clear();
 }
 
 
@@ -130,14 +129,17 @@ Module_Parameter_Editor::make_controls ( void )
 
     control_pack->clear();
 
+    controls_by_port.clear();
 
     /* these are for detecting related parameter groups which can be
        better represented by a single control */
-    int azimuth_port_number = -1;
+    azimuth_port_number = -1;
     float azimuth_value = 0.0f;
-    int elevation_port_number = -1;
+    elevation_port_number = -1;
     float elevation_value = 0.0f;
 
+    controls_by_port.resize( module->control_input.size() );
+
     for ( unsigned int i = 0; i < module->control_input.size(); ++i )
     {
         Fl_Widget *w;
@@ -243,6 +245,7 @@ Module_Parameter_Editor::make_controls ( void )
 
         }
 
+        controls_by_port[i] = w;
 
         w->tooltip( p->osc_path() );
 
@@ -309,6 +312,9 @@ Module_Parameter_Editor::make_controls ( void )
         Fl_Labelpad_Group *flg = new Fl_Labelpad_Group( o );
 
         control_pack->add( flg );
+
+        controls_by_port[azimuth_port_number] = o;
+        controls_by_port[elevation_port_number] = o;
     }
 
 
@@ -387,21 +393,34 @@ void
 Module_Parameter_Editor::handle_control_changed ( Module::Port *p )
 {
     int i = _module->control_input_port_index( p );
+   
+    Fl_Widget *w = controls_by_port[i];
 
-    /* FIXME: very hacky in that it assumes the control is an Fl_Valuator... (which buttons are not) */
-    Fl_Group *g = (Fl_Group*)control_pack->child( i );
-    Fl_Group *g2 = (Fl_Group*)g->child( 0 );
+    if ( i == azimuth_port_number ||
+         i == elevation_port_number )
+    {
+        Panner *_panner = (Panner*)w;
+
+        if ( i == azimuth_port_number )
+            _panner->point(0)->azimuth( p->control_value() );
+        else if ( i == elevation_port_number )
+            _panner->point(0)->elevation( p->control_value() );
+
+        _panner->redraw();
+
+        return;
+    }
 
 
     if ( p->hints.type == Module::Port::Hints::BOOLEAN )
     {
-        Fl_Button *v = (Fl_Button*)g2->child( 0 );
+        Fl_Button *v = (Fl_Button*)w;
 
         v->value( p->control_value() );
-    }
+    }        
     else
     {
-        Fl_Valuator *v = (Fl_Valuator*)g2->child( 0 );
+        Fl_Valuator *v = (Fl_Valuator*)w;
     
         v->value( p->control_value() );
     }
diff --git a/mixer/src/Module_Parameter_Editor.H b/mixer/src/Module_Parameter_Editor.H
index 193f17f..c82b61d 100644
--- a/mixer/src/Module_Parameter_Editor.H
+++ b/mixer/src/Module_Parameter_Editor.H
@@ -25,6 +25,9 @@ class Fl_Pack;
 class Fl_Flowpack;
 class Module;
 class Fl_Menu_Button;
+class Panner;
+
+#include <vector>
 
 class Module_Parameter_Editor : public Fl_Double_Window
 {
@@ -66,6 +69,11 @@ class Module_Parameter_Editor : public Fl_Double_Window
     Fl_Menu_Button *mode_choice;
     bool _resized;
 
+    int azimuth_port_number;
+    int elevation_port_number;
+
+    std::vector<Fl_Widget*> controls_by_port;  
+
 public:
 
     void handle_control_changed ( Module::Port *p );