Index: source/gameengine/Ketsji/KX_KetsjiEngine.cpp
===================================================================
--- source/gameengine/Ketsji/KX_KetsjiEngine.cpp	(revision 49742)
+++ source/gameengine/Ketsji/KX_KetsjiEngine.cpp	(working copy)
@@ -1589,11 +1589,11 @@
 	{
 		if (overlay)
 		{
-			m_addingOverlayScenes.insert(scenename);
+			m_addingOverlayScenes.push(scenename);
 		}
 		else
 		{
-			m_addingBackgroundScenes.insert(scenename);
+			m_addingBackgroundScenes.push(scenename);
 		}
 	}
 }
@@ -1663,37 +1663,27 @@
 	return CreateScene(scene);
 }
 
+
 void KX_KetsjiEngine::AddScheduledScenes()
 {
-	set<STR_String>::iterator scenenameit;
+	while (!m_addingOverlayScenes.empty()) {
+		
+		STR_String scenename = m_addingOverlayScenes.front();
+		KX_Scene* tmpscene = CreateScene(scenename);
+		m_scenes.push_back(tmpscene);
+		PostProcessScene(tmpscene);
 
-	if (m_addingOverlayScenes.size())
-	{
-		for (scenenameit = m_addingOverlayScenes.begin();
-			scenenameit != m_addingOverlayScenes.end();
-			scenenameit++)
-		{
-			STR_String scenename = *scenenameit;
-			KX_Scene* tmpscene = CreateScene(scenename);
-			m_scenes.push_back(tmpscene);
-			PostProcessScene(tmpscene);
-		}
-		m_addingOverlayScenes.clear();
+		m_addingOverlayScenes.pop();
 	}
-	
-	if (m_addingBackgroundScenes.size())
-	{
-		for (scenenameit = m_addingBackgroundScenes.begin();
-			scenenameit != m_addingBackgroundScenes.end();
-			scenenameit++)
-		{
-			STR_String scenename = *scenenameit;
-			KX_Scene* tmpscene = CreateScene(scenename);
-			m_scenes.insert(m_scenes.begin(),tmpscene);
-			PostProcessScene(tmpscene);
 
-		}
-		m_addingBackgroundScenes.clear();
+	while (!m_addingBackgroundScenes.empty()) {
+		
+		STR_String scenename = m_addingBackgroundScenes.front();
+		KX_Scene* tmpscene = CreateScene(scenename);
+		m_scenes.insert(m_scenes.begin(),tmpscene);
+		PostProcessScene(tmpscene);
+
+		m_addingBackgroundScenes.pop();
 	}
 }
 
Index: source/gameengine/Ketsji/KX_KetsjiEngine.h
===================================================================
--- source/gameengine/Ketsji/KX_KetsjiEngine.h	(revision 49742)
+++ source/gameengine/Ketsji/KX_KetsjiEngine.h	(working copy)
@@ -42,6 +42,7 @@
 #include "KX_WorldInfo.h"
 #include <vector>
 #include <set>
+#include <queue>
 
 class KX_TimeCategoryLogger;
 
@@ -86,13 +87,13 @@
 	class SCA_IInputDevice*				m_mousedevice;
 	class KX_Dome*						m_dome; // dome stereo mode
 
-	/** Lists of scenes scheduled to be removed at the end of the frame. */
+	// Lists of scenes scheduled to be removed at the end of the frame.
 	std::set<STR_String> m_removingScenes;
-	/** Lists of overley scenes scheduled to be added at the end of the frame. */
-	std::set<STR_String> m_addingOverlayScenes;
-	/** Lists of background scenes scheduled to be added at the end of the frame. */
-	std::set<STR_String> m_addingBackgroundScenes;
-	/** Lists of scenes scheduled to be replaced at the end of the frame. */
+	// Lists of overlay scenes scheduled to be added at the end of the frame.
+	std::queue<STR_String> m_addingOverlayScenes;
+	// Lists of background scenes scheduled to be added at the end of the frame.
+	std::queue<STR_String> m_addingBackgroundScenes;
+	// Lists of scenes scheduled to be replaced at the end of the frame.
 	std::set<std::pair<STR_String,STR_String> >	m_replace_scenes;
 
 	/* The current list of scenes. */