diff --git a/indra/newview/app_settings/high_graphics.xml b/indra/newview/app_settings/high_graphics.xml
index c3fa2ab75e..93d39c8414 100644
--- a/indra/newview/app_settings/high_graphics.xml
+++ b/indra/newview/app_settings/high_graphics.xml
@@ -12,8 +12,6 @@
 	<RenderFlexTimeFactor value="1"/>
 	<!--256... but they don't use this-->
 	<RenderGlowResolutionPow value="9"/>
-	<!--Sun/Moon only-->
-	<RenderLightingDetail value="1"/>
 	<!--Low number-->
 	<RenderMaxPartCount value="4096"/>
 	<!--bump okay-->
@@ -34,4 +32,11 @@
 	<VertexShaderEnable value="TRUE"/>
 	<!--NO SHADERS-->
 	<WindLightUseAtmosShaders value="TRUE"/>
+  <!--Deferred Shading-->
+  <RenderDeferred value="TRUE"/>
+  <!--SSAO Disabled-->
+  <RenderDeferredSSAO value="FALSE"/>
+  <!--Sun Shadows-->
+  <RenderShadowDetail value="1"/>
+
 </settings>
diff --git a/indra/newview/app_settings/low_graphics.xml b/indra/newview/app_settings/low_graphics.xml
index 54320117fc..a300c8646c 100644
--- a/indra/newview/app_settings/low_graphics.xml
+++ b/indra/newview/app_settings/low_graphics.xml
@@ -12,8 +12,6 @@
 	<RenderFlexTimeFactor value="0.5"/>
 	<!--256... but they don't use this-->
 	<RenderGlowResolutionPow value="8"/>
-	<!--Sun/Moon only-->
-	<RenderLightingDetail value="0"/>
 	<!--Low number-->
 	<RenderMaxPartCount value="1024"/>
 	<!--bump okay-->
@@ -34,4 +32,11 @@
 	<VertexShaderEnable value="FALSE"/>
 	<!--NO SHADERS-->
 	<WindLightUseAtmosShaders value="FALSE"/>
+  <!--No Deferred Shading-->
+  <RenderDeferred value="FALSE"/>
+  <!--SSAO Disabled-->
+  <RenderDeferredSSAO value="FALSE"/>
+  <!--No Shadows-->
+  <RenderShadowDetail value="0"/>
+
 </settings>
diff --git a/indra/newview/app_settings/mid_graphics.xml b/indra/newview/app_settings/mid_graphics.xml
index 422988498d..a1430a58f9 100644
--- a/indra/newview/app_settings/mid_graphics.xml
+++ b/indra/newview/app_settings/mid_graphics.xml
@@ -12,8 +12,6 @@
 	<RenderFlexTimeFactor value="1"/>
 	<!--256... but they don't use this-->
 	<RenderGlowResolutionPow value="8"/>
-	<!--Sun/Moon only-->
-	<RenderLightingDetail value="1"/>
 	<!--Low number-->
 	<RenderMaxPartCount value="2048"/>
 	<!--bump okay-->
@@ -34,4 +32,11 @@
 	<VertexShaderEnable value="TRUE"/>
 	<!--NO SHADERS-->
 	<WindLightUseAtmosShaders value="FALSE"/>
+  <!--No Deferred Shading-->
+  <RenderDeferred value="FALSE"/>
+  <!--SSAO Disabled-->
+  <RenderDeferredSSAO value="FALSE"/>
+  <!--No Shadows-->
+  <RenderShadowDetail value="0"/>
+
 </settings>
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 9c1d710551..c570578e63 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -7189,17 +7189,6 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
-    <key>RenderLightingDetail</key>
-    <map>
-      <key>Comment</key>
-      <string>Amount of detail for lighting objects/avatars/terrain (0=sun/moon only, 1=enable local lights)</string>
-      <key>Persist</key>
-      <integer>1</integer>
-      <key>Type</key>
-      <string>S32</string>
-      <key>Value</key>
-      <integer>1</integer>
-    </map>
     <key>RenderMaxPartCount</key>
     <map>
       <key>Comment</key>
diff --git a/indra/newview/app_settings/ultra_graphics.xml b/indra/newview/app_settings/ultra_graphics.xml
index 149aa32000..f741089ca2 100644
--- a/indra/newview/app_settings/ultra_graphics.xml
+++ b/indra/newview/app_settings/ultra_graphics.xml
@@ -12,8 +12,6 @@
 	<RenderFlexTimeFactor value="1"/>
 	<!--256... but they don't use this-->
 	<RenderGlowResolutionPow value="9"/>
-	<!--Sun/Moon only-->
-	<RenderLightingDetail value="1"/>
 	<!--Low number-->
 	<RenderMaxPartCount value="4096"/>
 	<!--bump okay-->
@@ -34,4 +32,11 @@
 	<VertexShaderEnable value="TRUE"/>
 	<!--NO SHADERS-->
 	<WindLightUseAtmosShaders value="TRUE"/>
+  <!--Deferred Shading-->
+  <RenderDeferred value="TRUE"/>
+  <!--SSAO Enabled-->
+  <RenderDeferredSSAO value="TRUE"/>
+  <!--Full Shadows-->
+  <RenderShadowDetail value="2"/>
+
 </settings>
diff --git a/indra/newview/featuretable.txt b/indra/newview/featuretable.txt
index 7f13240e60..1913f52499 100644
--- a/indra/newview/featuretable.txt
+++ b/indra/newview/featuretable.txt
@@ -35,7 +35,6 @@ RenderFogRatio				1	4.0
 RenderGamma					1	0
 RenderGlowResolutionPow		1	9
 RenderGround				1	1
-RenderLightingDetail		1	1
 RenderMaxPartCount			1	8192
 RenderNightBrightness		1	1.0
 RenderObjectBump			1	1
@@ -55,6 +54,9 @@ Disregard128DefaultDrawDistance	1	1
 Disregard96DefaultDrawDistance	1	1
 RenderTextureMemoryMultiple		1	1.0
 RenderShaderLightingMaxLevel	1	3
+RenderDeferred				1	1
+RenderDeferredSSAO			1	1
+RenderShadowDetail			1	2
 
 
 //
@@ -68,7 +70,6 @@ RenderAvatarVP				1	0
 RenderFarClip				1	64
 RenderFlexTimeFactor		1	0.5
 RenderGlowResolutionPow		1	8
-RenderLightingDetail		1	0
 RenderMaxPartCount			1	1024
 RenderObjectBump			1	0
 RenderReflectionDetail		1	0
@@ -80,6 +81,10 @@ RenderVolumeLODFactor		1	1.125
 VertexShaderEnable			1	0
 WindLightUseAtmosShaders	1	0
 WLSkyDetail					1	48
+RenderDeferred				1	0
+RenderDeferredSSAO			1	0
+RenderShadowDetail			1	0
+
 
 //
 // Mid Graphics Settings
@@ -92,7 +97,6 @@ RenderAvatarVP				1	1
 RenderFarClip				1	96
 RenderFlexTimeFactor		1	1.0
 RenderGlowResolutionPow		1	8
-RenderLightingDetail		1	1
 RenderMaxPartCount			1	2048
 RenderObjectBump			1	1
 RenderReflectionDetail		1	0
@@ -104,6 +108,10 @@ RenderVolumeLODFactor		1	1.125
 VertexShaderEnable			1	1
 WindLightUseAtmosShaders	1	0
 WLSkyDetail					1	48
+RenderDeferred				1	0
+RenderDeferredSSAO			1	0
+RenderShadowDetail			1	0
+
 
 //
 // High Graphics Settings (purty)
@@ -116,7 +124,6 @@ RenderAvatarVP				1	1
 RenderFarClip				1	128
 RenderFlexTimeFactor		1	1.0
 RenderGlowResolutionPow		1	9
-RenderLightingDetail		1	1
 RenderMaxPartCount			1	4096
 RenderObjectBump			1	1
 RenderReflectionDetail		1	2
@@ -128,6 +135,10 @@ RenderVolumeLODFactor		1	1.125
 VertexShaderEnable			1	1
 WindLightUseAtmosShaders	1	1
 WLSkyDetail					1	48
+RenderDeferred				1	1
+RenderDeferredSSAO			1	0
+RenderShadowDetail			1	1
+
 
 //
 // Ultra graphics (REALLY PURTY!)
@@ -140,7 +151,6 @@ RenderAvatarVP				1	1
 RenderFarClip				1	256
 RenderFlexTimeFactor		1	1.0
 RenderGlowResolutionPow		1	9
-RenderLightingDetail		1	1
 RenderMaxPartCount			1	8192
 RenderObjectBump			1	1
 RenderReflectionDetail		1	4
@@ -152,6 +162,10 @@ RenderVolumeLODFactor		1	2.0
 VertexShaderEnable			1	1
 WindLightUseAtmosShaders	1	1
 WLSkyDetail					1	128
+RenderDeferred				1	1
+RenderDeferredSSAO			1	1
+RenderShadowDetail			1	2
+
 
 //
 // Class Unknown Hardware (unknown)
@@ -192,6 +206,9 @@ RenderAvatarCloth			0	0
 RenderReflectionDetail		0	0
 VertexShaderEnable			0	0
 WindLightUseAtmosShaders	0	0
+RenderDeferred				0	0
+RenderDeferredSSAO			0	0
+RenderShadowDetail			0	0
 
 //
 // No Vertex Shaders available
@@ -202,6 +219,10 @@ RenderAvatarCloth			0	0
 RenderReflectionDetail		0	0
 VertexShaderEnable			0	0
 WindLightUseAtmosShaders	0	0
+RenderDeferred				0	0
+RenderDeferredSSAO			0	0
+RenderShadowDetail			0	0
+
 
 // "Default" setups for safe, low, medium, high
 //
@@ -209,7 +230,6 @@ list safe
 RenderAnisotropic			1	0
 RenderAvatarCloth			0	0
 RenderAvatarVP				0	0
-RenderLightingDetail		1	0
 RenderObjectBump			0	0
 RenderMaxPartCount			1	1024
 RenderTerrainDetail 		1	0
@@ -217,6 +237,10 @@ RenderUseImpostors			0	0
 RenderVBOEnable				1	0
 RenderReflectionDetail		0	0
 WindLightUseAtmosShaders	0	0
+RenderDeferred				0	0
+RenderDeferredSSAO			0	0
+RenderShadowDetail			0	0
+
 
 //
 // CPU based feature masks
@@ -240,11 +264,9 @@ RenderVBOEnable				1	0
 
 list Intel
 RenderAnisotropic			1	0
-RenderLightingDetail		1	0
 
 list GeForce2
 RenderAnisotropic			1	0
-RenderLightingDetail		1	0
 RenderMaxPartCount			1	2048
 RenderTerrainDetail			1	0
 RenderVBOEnable				1	1
diff --git a/indra/newview/llfloaterpreference.cpp b/indra/newview/llfloaterpreference.cpp
index 281bfca188..551884d5a2 100644
--- a/indra/newview/llfloaterpreference.cpp
+++ b/indra/newview/llfloaterpreference.cpp
@@ -799,7 +799,7 @@ void LLFloaterPreference::buildPopupLists()
 
 void LLFloaterPreference::refreshEnabledState()
 {	
-	LLCheckBoxCtrl* ctrl_reflections = getChild<LLCheckBoxCtrl>("Reflections");
+	LLComboBox* ctrl_reflections = getChild<LLComboBox>("Reflections");
 	LLRadioGroup* radio_reflection_detail = getChild<LLRadioGroup>("ReflectionDetailRadio");
 	
 	// Reflections
@@ -812,7 +812,7 @@ void LLFloaterPreference::refreshEnabledState()
 	bool bumpshiny = gGLManager.mHasCubeMap && LLCubeMap::sUseCubeMaps && LLFeatureManager::getInstance()->isFeatureAvailable("RenderObjectBump");
 	getChild<LLCheckBoxCtrl>("BumpShiny")->setEnabled(bumpshiny ? TRUE : FALSE);
 	
-	radio_reflection_detail->setEnabled(ctrl_reflections->get() && reflections);
+	radio_reflection_detail->setEnabled(reflections);
 	
 	// Avatar Mode
 	// Enable Avatar Shaders
@@ -858,6 +858,26 @@ void LLFloaterPreference::refreshEnabledState()
 	// *HACK just checks to see if we can use shaders... 
 	// maybe some cards that use shaders, but don't support windlight
 	ctrl_wind_light->setEnabled(ctrl_shader_enable->getEnabled() && shaders);
+
+	//Deferred/SSAO/Shadows
+	LLCheckBoxCtrl* ctrl_deferred = getChild<LLCheckBoxCtrl>("UseLightShaders");
+	if (LLFeatureManager::getInstance()->isFeatureAvailable("RenderUseFBO") &&
+		shaders)
+	{
+		BOOL enabled = ctrl_wind_light->get() ? TRUE : FALSE;
+
+		ctrl_deferred->setEnabled(enabled);
+	
+		LLCheckBoxCtrl* ctrl_ssao = getChild<LLCheckBoxCtrl>("UseSSAO");
+		LLComboBox* ctrl_shadow = getChild<LLComboBox>("ShadowDetail");
+
+		enabled = enabled && (ctrl_deferred->get() ? TRUE : FALSE);
+		
+		ctrl_ssao->setEnabled(enabled);
+		ctrl_shadow->setEnabled(enabled);
+	}
+
+
 	// now turn off any features that are unavailable
 	disableUnavailableSettings();
 
@@ -872,6 +892,9 @@ void LLFloaterPreference::disableUnavailableSettings()
 	LLCheckBoxCtrl* ctrl_shader_enable = getChild<LLCheckBoxCtrl>("BasicShaders");
 	LLCheckBoxCtrl* ctrl_wind_light    = getChild<LLCheckBoxCtrl>("WindLightUseAtmosShaders");
 	LLCheckBoxCtrl* ctrl_avatar_impostors = getChild<LLCheckBoxCtrl>("AvatarImpostors");
+	LLCheckBoxCtrl* ctrl_deferred = getChild<LLCheckBoxCtrl>("UseLightShaders");
+	LLComboBox* ctrl_shadows = getChild<LLComboBox>("ShadowDetail");
+	LLCheckBoxCtrl* ctrl_ssao = getChild<LLCheckBoxCtrl>("UseSSAO");
 
 	// if vertex shaders off, disable all shader related products
 	if(!LLFeatureManager::getInstance()->isFeatureAvailable("VertexShaderEnable"))
@@ -883,13 +906,22 @@ void LLFloaterPreference::disableUnavailableSettings()
 		ctrl_wind_light->setValue(FALSE);
 		
 		ctrl_reflections->setEnabled(FALSE);
-		ctrl_reflections->setValue(FALSE);
+		ctrl_reflections->setValue(0);
 		
 		ctrl_avatar_vp->setEnabled(FALSE);
 		ctrl_avatar_vp->setValue(FALSE);
 		
 		ctrl_avatar_cloth->setEnabled(FALSE);
 		ctrl_avatar_cloth->setValue(FALSE);
+
+		ctrl_shadows->setEnabled(FALSE);
+		ctrl_shadows->setValue(0);
+		
+		ctrl_ssao->setEnabled(FALSE);
+		ctrl_ssao->setValue(FALSE);
+
+		ctrl_deferred->setEnabled(FALSE);
+		ctrl_deferred->setValue(FALSE);
 	}
 	
 	// disabled windlight
@@ -897,6 +929,16 @@ void LLFloaterPreference::disableUnavailableSettings()
 	{
 		ctrl_wind_light->setEnabled(FALSE);
 		ctrl_wind_light->setValue(FALSE);
+
+		//deferred needs windlight, disable deferred
+		ctrl_shadows->setEnabled(FALSE);
+		ctrl_shadows->setValue(0);
+		
+		ctrl_ssao->setEnabled(FALSE);
+		ctrl_ssao->setValue(FALSE);
+
+		ctrl_deferred->setEnabled(FALSE);
+		ctrl_deferred->setValue(FALSE);
 	}
 	
 	// disabled reflections
@@ -914,13 +956,25 @@ void LLFloaterPreference::disableUnavailableSettings()
 		
 		ctrl_avatar_cloth->setEnabled(FALSE);
 		ctrl_avatar_cloth->setValue(FALSE);
+
+		//deferred needs AvatarVP, disable deferred
+		ctrl_shadows->setEnabled(FALSE);
+		ctrl_shadows->setValue(0);
+		
+		ctrl_ssao->setEnabled(FALSE);
+		ctrl_ssao->setValue(FALSE);
+
+		ctrl_deferred->setEnabled(FALSE);
+		ctrl_deferred->setValue(FALSE);
 	}
+
 	// disabled cloth
 	if(!LLFeatureManager::getInstance()->isFeatureAvailable("RenderAvatarCloth"))
 	{
 		ctrl_avatar_cloth->setEnabled(FALSE);
 		ctrl_avatar_cloth->setValue(FALSE);
 	}
+
 	// disabled impostors
 	if(!LLFeatureManager::getInstance()->isFeatureAvailable("RenderUseImpostors"))
 	{
diff --git a/indra/newview/llviewercontrol.cpp b/indra/newview/llviewercontrol.cpp
index b773b95917..0a1108c3c3 100644
--- a/indra/newview/llviewercontrol.cpp
+++ b/indra/newview/llviewercontrol.cpp
@@ -299,15 +299,6 @@ static bool handleWLSkyDetailChanged(const LLSD&)
 	return true;
 }
 
-static bool handleRenderLightingDetailChanged(const LLSD& newvalue)
-{
-	if (gPipeline.isInit())
-	{
-		gPipeline.setLightingDetail(newvalue.asInteger());
-	}
-	return true;
-}
-
 static bool handleResetVertexBuffersChanged(const LLSD&)
 {
 	if (gPipeline.isInit())
@@ -579,7 +570,6 @@ void settings_setup_listeners()
 	gSavedSettings.getControl("RenderVBOEnable")->getSignal()->connect(boost::bind(&handleRenderUseVBOChanged, _2));
 	gSavedSettings.getControl("RenderUseStreamVBO")->getSignal()->connect(boost::bind(&handleResetVertexBuffersChanged, _2));
 	gSavedSettings.getControl("WLSkyDetail")->getSignal()->connect(boost::bind(&handleWLSkyDetailChanged, _2));
-	gSavedSettings.getControl("RenderLightingDetail")->getSignal()->connect(boost::bind(&handleRenderLightingDetailChanged, _2));
 	gSavedSettings.getControl("NumpadControl")->getSignal()->connect(boost::bind(&handleNumpadControlChanged, _2));
 	gSavedSettings.getControl("JoystickAxis0")->getSignal()->connect(boost::bind(&handleJoystickChanged, _2));
 	gSavedSettings.getControl("JoystickAxis1")->getSignal()->connect(boost::bind(&handleJoystickChanged, _2));
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index c15f93d9aa..a0d0b9d490 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -317,10 +317,16 @@ S32 LLViewerShaderMgr::getVertexShaderLevel(S32 type)
 
 void LLViewerShaderMgr::setShaders()
 {
-	if (!gPipeline.mInitialized || !sInitialized)
+	//setShaders might be called redundantly by gSavedSettings, so return on reentrance
+	static bool reentrance = false;
+	
+	if (!gPipeline.mInitialized || !sInitialized || reentrance)
 	{
 		return;
 	}
+
+	reentrance = true;
+
 	// Make sure the compiled shader map is cleared before we recompile shaders.
 	mShaderObjects.clear();
 	
@@ -368,15 +374,8 @@ void LLViewerShaderMgr::setShaders()
 		S32 wl_class = 2;
 		S32 water_class = 2;
 		S32 deferred_class = 0;
-		if (!(LLFeatureManager::getInstance()->isFeatureAvailable("WindLightUseAtmosShaders")
-			  && gSavedSettings.getBOOL("WindLightUseAtmosShaders")))
-		{
-			// user has disabled WindLight in their settings, downgrade
-			// windlight shaders to stub versions.
-			wl_class = 1;
-		}
-
-		if (LLPipeline::sRenderDeferred)
+		
+		if (gSavedSettings.getBOOL("RenderDeferred"))
 		{
 			if (gSavedSettings.getS32("RenderShadowDetail") > 0)
 			{
@@ -393,6 +392,24 @@ void LLViewerShaderMgr::setShaders()
 			{ //no shadows
 				deferred_class = 1;
 			}
+
+			//make sure framebuffer objects are enabled
+			gSavedSettings.setBOOL("RenderUseFBO", TRUE);
+
+			//make sure hardware skinning is enabled
+			gSavedSettings.setBOOL("RenderAvatarVP", TRUE);
+			
+			//make sure atmospheric shaders are enabled
+			gSavedSettings.setBOOL("WindLightUseAtmosShaders", TRUE);
+		}
+
+
+		if (!(LLFeatureManager::getInstance()->isFeatureAvailable("WindLightUseAtmosShaders")
+			  && gSavedSettings.getBOOL("WindLightUseAtmosShaders")))
+		{
+			// user has disabled WindLight in their settings, downgrade
+			// windlight shaders to stub versions.
+			wl_class = 1;
 		}
 
 		if(!gSavedSettings.getBOOL("EnableRippleWater"))
@@ -517,6 +534,8 @@ void LLViewerShaderMgr::setShaders()
 		gViewerWindow->setCursor(UI_CURSOR_ARROW);
 	}
 	gPipeline.createGLBuffers();
+
+	reentrance = false;
 }
 
 void LLViewerShaderMgr::unloadShaders()
diff --git a/indra/newview/llviewerstats.cpp b/indra/newview/llviewerstats.cpp
index b7c265be59..b0c4b6fc8a 100644
--- a/indra/newview/llviewerstats.cpp
+++ b/indra/newview/llviewerstats.cpp
@@ -592,7 +592,7 @@ void update_statistics(U32 frame_count)
 		}
 	}
 	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_ENABLE_VBO, (F64)gSavedSettings.getBOOL("RenderVBOEnable"));
-	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_LIGHTING_DETAIL, (F64)gSavedSettings.getS32("RenderLightingDetail"));
+	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_LIGHTING_DETAIL, (F64)gPipeline.getLightingDetail());
 	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_DRAW_DIST, (F64)gSavedSettings.getF32("RenderFarClip"));
 	LLViewerStats::getInstance()->setStat(LLViewerStats::ST_CHAT_BUBBLES, (F64)gSavedSettings.getBOOL("UseChatBubbles"));
 #if 0 // 1.9.2
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index fc81241080..21052775bd 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -408,6 +408,8 @@ void LLPipeline::init()
 	{
 		mSpotLightFade[i] = 1.f;
 	}
+
+	setLightingDetail(-1);
 }
 
 LLPipeline::~LLPipeline()
@@ -904,13 +906,18 @@ S32 LLPipeline::setLightingDetail(S32 level)
 
 	if (level < 0)
 	{
-		level = gSavedSettings.getS32("RenderLightingDetail");
+		if (gSavedSettings.getBOOL("VertexShaderEnable"))
+		{
+			level = 1;
+		}
+		else
+		{
+			level = 0;
+		}
 	}
 	level = llclamp(level, 0, getMaxLightingDetail());
 	if (level != mLightingDetail)
 	{
-		gSavedSettings.setS32("RenderLightingDetail", level);
-		
 		mLightingDetail = level;
 
 		if (mVertexShadersLoaded == 1)
diff --git a/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml b/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml
index 96083bd5fa..87502537d3 100644
--- a/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml
+++ b/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml
@@ -215,12 +215,15 @@
 		control_name="RenderDeferred"
 		height="16"
 		initial_value="true"
-		label="Lighting Shaders"
+		label="Lighting and Shadows"
 		layout="topleft"
 		left_delta="0"
 		name="UseLightShaders"
 		top_pad="1"
-		width="256"/>
+		width="256">
+      <check_box.commit_callback
+			function="Pref.VertexShaderEnable" />
+    </check_box>
     <check_box
 		control_name="RenderDeferredSSAO"
 		height="16"
@@ -230,9 +233,12 @@
 		left_delta="0"
 		name="UseSSAO"
 		top_pad="1"
-		width="256"/>
+		width="256">
+      <check_box.commit_callback
+			function="Pref.VertexShaderEnable" />
+    </check_box>
 
-      <text
+     <text
     type="string"
     length="1"
     top_pad="8"
@@ -242,7 +248,42 @@
     word_wrap="true"
     layout="topleft"
     left="10"
-    name="reflection_label">
+    name="shadows_label">
+        Shadows:
+      </text>
+      <combo_box
+      control_name="RenderShadowDetail"
+      height="23"
+      layout="topleft"
+      left="10"
+      top_pad="0" 
+      name="ShadowDetail"
+      width="150">
+        <combo_box.item
+        label="None"
+        name="0"
+        value="0"/>
+        <combo_box.item
+        label="Sun/Moon"
+        name="1"
+        value="1"/>
+        <combo_box.item
+        label="Sun/Moon + Projectors"
+        name="2"
+        value="2"/>
+      </combo_box>
+
+      <text
+  type="string"
+  length="1"
+  top_pad="8"
+  follows="top|left"
+  height="23"
+  width="110"
+  word_wrap="true"
+  layout="topleft"
+  left="10"
+  name="reflection_label">
         Water Reflections:
       </text>
       <combo_box
@@ -250,7 +291,7 @@
       height="23"
       layout="topleft"
       left_="10"
-      top_pad ="0" 
+      top_pad ="0"
       name="Reflections"
       width="150">
         <combo_box.item
@@ -274,41 +315,6 @@
         name="4"
         value="4"/>
       </combo_box>
-
-      <text
-    type="string"
-    length="1"
-    top_pad="8"
-    follows="top|left"
-    height="23"
-    width="110"
-    word_wrap="true"
-    layout="topleft"
-    left="10"
-    name="shadows_label">
-        Shadows:
-      </text>
-      <combo_box
-      control_name="RenderShadowDetail"
-      height="23"
-      layout="topleft"
-      left="10"
-      top_pad="0" 
-      name="ShadowDetailRadio"
-      width="150">
-        <combo_box.item
-        label="None"
-        name="0"
-        value="0"/>
-        <combo_box.item
-        label="Sun/Moon"
-        name="1"
-        value="1"/>
-        <combo_box.item
-        label="Sun/Moon + Projectors"
-        name="2"
-        value="2"/>
-      </combo_box>
     
 		<slider
 		control_name="RenderFarClip"