diff --git a/SpiralSound/Plugins/MixerPlugin/MixerPluginGUI.C b/SpiralSound/Plugins/MixerPlugin/MixerPluginGUI.C
index b2d6f3c..7f7d741 100644
--- a/SpiralSound/Plugins/MixerPlugin/MixerPluginGUI.C
+++ b/SpiralSound/Plugins/MixerPlugin/MixerPluginGUI.C
@@ -48,7 +48,7 @@ SpiralPluginGUI(w,h,o,ch)
 	m_Buttons->add (m_Add);
 }
 
-void MixerPluginGUI::AddChan (bool SendData = false, bool ResizeIt = false) {
+void MixerPluginGUI::AddChan (bool SendData, bool ResizeIt) {
      Fl_Slider *NewSlide = new Fl_Slider (0, 0, 20, 100, "");
      NewSlide->type (4);
      NewSlide->selection_color (GUI_COLOUR);
@@ -72,7 +72,7 @@ void MixerPluginGUI::AddChan (bool SendData = false, bool ResizeIt = false) {
      }
 }
 
-void MixerPluginGUI::DeleteChan (bool SendData = true, bool DrawIt = true) {
+void MixerPluginGUI::DeleteChan (bool SendData, bool DrawIt) {
      vector<Fl_Slider*>::iterator i = m_SlidVec.end ();
      i--;
      m_MainPack->remove (*i);
diff --git a/SpiralSound/Plugins/StreamPlugin/StreamPluginGUI.C b/SpiralSound/Plugins/StreamPlugin/StreamPluginGUI.C
index c7c2944..3a3bf95 100644
--- a/SpiralSound/Plugins/StreamPlugin/StreamPluginGUI.C
+++ b/SpiralSound/Plugins/StreamPlugin/StreamPluginGUI.C
@@ -152,7 +152,7 @@ void StreamPluginGUI::cb_Volume (Fl_Knob* o, void* v) {
 
 // pitch
 
-void StreamPluginGUI::UpdatePitch (bool UpdateIt = true, bool DrawIt = true, bool SendIt = true) {
+void StreamPluginGUI::UpdatePitch (bool UpdateIt, bool DrawIt, bool SendIt) {
      sprintf( PitchLabel, "%1.3f   ", m_PitchValue);
      m_Pitch->label (PitchLabel);
      if (UpdateIt) m_Pitch->value (m_PitchValue+10);