diff --git a/src/avtk/avtk_dial.h b/src/avtk/avtk_dial.h
index 62da557..cd7bd09 100644
--- a/src/avtk/avtk_dial.h
+++ b/src/avtk/avtk_dial.h
@@ -20,6 +20,7 @@
 #ifndef AVTK_DIAL_H
 #define AVTK_DIAL_H
 
+#include <stdio.h>
 #include <FL/Fl_Dial.H>
 #include <FL/Fl_Slider.H>
 
@@ -29,8 +30,8 @@ namespace Avtk
 class Dial : public Fl_Slider
 {
   public:
-    Dial(int _x, int _y, int _w, int _h, const char* _label=0):
-        Fl_Slider(_x, _y, _w, _h, _label)
+    Dial(int _x, int _y, int _w, int _h, const char* _lab=0):
+        Fl_Slider(_x, _y, _w, _h, _lab)
     {
       x = _x;
       y = _y;
@@ -43,12 +44,18 @@ class Dial : public Fl_Slider
       mouseClicked = false;
       
       highlight = false;
-      label = _label;
+      _label = strdup( _lab );
+    }
+    
+    ~Dial()
+    {
+      if( _label )
+        free( _label );
     }
     
     bool highlight;
     int x, y, w, h;
-    const char* label;
+    char* _label;
     
     float radius;
     float lineWidth;
@@ -58,6 +65,17 @@ class Dial : public Fl_Slider
     
     bool drawLabel;
     
+    void setLabel( const char* newLabel )
+    {
+      if( _label )
+        free( _label );
+      
+      _label = strdup( newLabel );
+      
+      label( _label );
+      redraw();
+    }
+    
     void draw()
     {
       if (damage() & FL_DAMAGE_ALL)
diff --git a/src/gmastertrack.cxx b/src/gmastertrack.cxx
index 5c77682..05ad1dd 100644
--- a/src/gmastertrack.cxx
+++ b/src/gmastertrack.cxx
@@ -106,7 +106,6 @@ static void gmastertrack_mixVol_callback(Fl_Widget *w, void *data)
   float v = b->value();
   EventMasterInputTo e = EventMasterInputTo( INPUT_TO_MIX, v );
   writeToDspRingbuffer( &e );
-  //printf("MIX dial\n");
 }
 
 static void gmastertrack_transport_callback(Fl_Widget *w, void *data)
@@ -278,6 +277,9 @@ void GMasterTrack::setBpm( int b )
 {
   bpm = b;
   tempoDial.value( ( bpm - 60 ) / 160.f );
+  std::stringstream s;
+  s << bpm;
+  tempoDial.setLabel( s.str().c_str() );
 }
 
 void GMasterTrack::setInputVol(float f)