diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index a26aae35902cc037e8e3d61de47cb3a1e7fe5ae9..254a44287fc54614c4da71e25d4183fd1aa533d6 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -219,6 +219,7 @@ set(viewer_SOURCE_FILES
     llfloaterwater.cpp
     llfloaterwhitelistentry.cpp
     llfloaterwindlight.cpp
+    llfloaterwindowsize.cpp
     llfloaterworldmap.cpp
     llfolderview.cpp
     llfolderviewitem.cpp
@@ -728,6 +729,7 @@ set(viewer_HEADER_FILES
     llfloaterwater.h
     llfloaterwhitelistentry.h
     llfloaterwindlight.h
+    llfloaterwindowsize.h
     llfloaterworldmap.h
     llfolderview.h
     llfoldervieweventlistener.h
diff --git a/indra/newview/llfloaterpreference.cpp b/indra/newview/llfloaterpreference.cpp
index 7e0e8bfaa70b865b80a1866ff85b36ed0c000022..11dd48056cc02ff935f0ce8ff59c569af071cc8d 100644
--- a/indra/newview/llfloaterpreference.cpp
+++ b/indra/newview/llfloaterpreference.cpp
@@ -103,15 +103,10 @@
 #include "llworld.h"
 #include "pipeline.h"
 #include "lluictrlfactory.h"
-#include "llboost.h"
 #include "llviewermedia.h"
 #include "llpluginclassmedia.h"
 #include "llteleporthistorystorage.h"
 
-#include <boost/regex.hpp>
-
-//RN temporary includes for resolution switching
-#include "llglheaders.h"
 const F32 MAX_USER_FAR_CLIP = 512.f;
 const F32 MIN_USER_FAR_CLIP = 64.f;
 
@@ -193,7 +188,6 @@ bool callback_clear_browser_cache(const LLSD& notification, const LLSD& response
 bool callback_skip_dialogs(const LLSD& notification, const LLSD& response, LLFloaterPreference* floater);
 bool callback_reset_dialogs(const LLSD& notification, const LLSD& response, LLFloaterPreference* floater);
 
-bool extractWindowSizeFromString(const std::string& instr, U32 &width, U32 &height);
 void fractionFromDecimal(F32 decimal_val, S32& numerator, S32& denominator);
 
 viewer_media_t get_web_media()
@@ -273,23 +267,6 @@ bool callback_reset_dialogs(const LLSD& notification, const LLSD& response, LLFl
 }
 
 
-// Extract from strings of the form "<width> x <height>", e.g. "640 x 480".
-bool extractWindowSizeFromString(const std::string& instr, U32 &width, U32 &height)
-{
-	using namespace boost;
-	cmatch what;
-	const regex expression("([0-9]+) x ([0-9]+)");
-	if (regex_match(instr.c_str(), what, expression))
-	{
-		width = atoi(what[1].first);
-		height = atoi(what[2].first);
-		return true;
-	}
-	
-	width = height = 0;
-	return false;
-}
-
 void fractionFromDecimal(F32 decimal_val, S32& numerator, S32& denominator)
 {
 	numerator = 0;
@@ -499,13 +476,6 @@ void LLFloaterPreference::apply()
 	}
 
 	applyResolution();
-	
-	// Only set window size if we're not in fullscreen mode
-	if(!gSavedSettings.getBOOL("WindowFullScreen"))
-	{
-		applyWindowSize();
-	}
-	
 }
 
 void LLFloaterPreference::cancel()
@@ -1264,20 +1234,6 @@ void LLFloaterPreference::onKeystrokeAspectRatio()
 	getChild<LLCheckBoxCtrl>("aspect_auto_detect")->set(FALSE);
 }
 
-void LLFloaterPreference::applyWindowSize()
-{
-	LLComboBox* ctrl_windowSize = getChild<LLComboBox>("windowsize combo");
-	if (ctrl_windowSize->getVisible() && (ctrl_windowSize->getCurrentIndex() != -1))
-	{
-		U32 width = 0;
-		U32 height = 0;
-		if (extractWindowSizeFromString(ctrl_windowSize->getValue().asString().c_str(), width,height))
-		{
-			LLViewerWindow::movieSize(width, height);
-		}
-	}
-}
-
 void LLFloaterPreference::applyResolution()
 {
 	LLComboBox* ctrl_aspect_ratio = getChild<LLComboBox>( "aspect_ratio");
@@ -1345,36 +1301,7 @@ void LLFloaterPreference::applyResolution()
 	refresh();
 }
 
-void LLFloaterPreference::initWindowSizeControls(LLPanel* panelp)
-{
-	// Window size
-	//	mWindowSizeLabel = getChild<LLTextBox>("WindowSizeLabel");
-	LLComboBox* ctrl_window_size = panelp->getChild<LLComboBox>("windowsize combo");
-	
-	// Look to see if current window size matches existing window sizes, if so then
-	// just set the selection value...
-	const U32 height = gViewerWindow->getWindowHeightRaw();
-	const U32 width = gViewerWindow->getWindowWidthRaw();
-	for (S32 i=0; i < ctrl_window_size->getItemCount(); i++)
-	{
-		U32 height_test = 0;
-		U32 width_test = 0;
-		ctrl_window_size->setCurrentByIndex(i);
-		if (extractWindowSizeFromString(ctrl_window_size->getValue().asString(), width_test, height_test))
-		{
-			if ((height_test == height) && (width_test == width))
-			{
-				return;
-			}
-		}
-	}
-	// ...otherwise, add a new entry with the current window height/width.
-	LLUIString resolution_label = panelp->getString("resolution_format");
-	resolution_label.setArg("[RES_X]", llformat("%d", width));
-	resolution_label.setArg("[RES_Y]", llformat("%d", height));
-	ctrl_window_size->add(resolution_label, ADD_TOP);
-	ctrl_window_size->setCurrentByIndex(0);
-}
+
 
 
 void LLFloaterPreference::applyUIColor(LLUICtrl* ctrl, const LLSD& param)
@@ -1433,53 +1360,8 @@ BOOL LLPanelPreference::postBuild()
 
 	if(hasChild("aspect_ratio"))
 	{
-		//============================================================================
-		// Resolution
-/*
-		S32 num_resolutions = 0;
-		LLWindow::LLWindowResolution* supported_resolutions = gViewerWindow->getWindow()->getSupportedResolutions(num_resolutions);
-		
-		S32 fullscreen_mode = num_resolutions - 1;
-		
-		LLComboBox*ctrl_full_screen = getChild<LLComboBox>( "fullscreen combo");
-		LLUIString resolution_label = getString("resolution_format");
-		
-		for (S32 i = 0; i < num_resolutions; i++)
-		{
-			resolution_label.setArg("[RES_X]", llformat("%d", supported_resolutions[i].mWidth));
-			resolution_label.setArg("[RES_Y]", llformat("%d", supported_resolutions[i].mHeight));
-			ctrl_full_screen->add( resolution_label, ADD_BOTTOM );
-		}
-		
-		{
-			BOOL targetFullscreen;
-			S32 targetWidth;
-			S32 targetHeight;
-			
-			gViewerWindow->getTargetWindow(targetFullscreen, targetWidth, targetHeight);
-			
-			if (targetFullscreen)
-			{
-				fullscreen_mode = 0; // default to 800x600
-				for (S32 i = 0; i < num_resolutions; i++)
-				{
-					if (targetWidth == supported_resolutions[i].mWidth
-						&&  targetHeight == supported_resolutions[i].mHeight)
-					{
-						fullscreen_mode = i;
-					}
-				}
-				ctrl_full_screen->setCurrentByIndex(fullscreen_mode);
-			}
-			else
-			{
-				// set to windowed mode
-				//fullscreen_mode = mCtrlFullScreen->getItemCount() - 1;
-				ctrl_full_screen->setCurrentByIndex(0);
-			}
-		}
-	*/	
-		LLFloaterPreference::initWindowSizeControls(this);
+		// We used to set up fullscreen resolution and window size
+		// controls here, see LLFloaterWindowSize::initWindowSizeControls()
 		
 		if (gSavedSettings.getBOOL("FullScreenAutoDetectAspectRatio"))
 		{
diff --git a/indra/newview/llfloaterpreference.h b/indra/newview/llfloaterpreference.h
index 94108cb79ab7888c2366bf63770b91187b9024ad..74a53d673c457951204b3a3d5c20779c8ef4691c 100644
--- a/indra/newview/llfloaterpreference.h
+++ b/indra/newview/llfloaterpreference.h
@@ -130,16 +130,12 @@ class LLFloaterPreference : public LLFloater
 	void onUpdateSliderText(LLUICtrl* ctrl, const LLSD& name);
 	void onKeystrokeAspectRatio();
 //	void fractionFromDecimal(F32 decimal_val, S32& numerator, S32& denominator);
-//	bool extractWindowSizeFromString(const std::string& instr, U32 &width, U32 &height);
 
 	void onCommitAutoDetectAspect();
 	void applyResolution();
-	void applyWindowSize();
 	void applyUIColor(LLUICtrl* ctrl, const LLSD& param);
 	void getUIColor(LLUICtrl* ctrl, const LLSD& param);	
 	
-	static void initWindowSizeControls(LLPanel* panelp);
-	
 	void buildPopupLists();
 	static void refreshSkin(void* data);
 	static void cleanupBadSetting();
diff --git a/indra/newview/llfloaterwindowsize.cpp b/indra/newview/llfloaterwindowsize.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..5519be6f084e3f3c8f2aba2559bc934e014bdf81
--- /dev/null
+++ b/indra/newview/llfloaterwindowsize.cpp
@@ -0,0 +1,164 @@
+/** 
+ * @file llfloaterwindowsize.cpp
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+ 
+#include "llviewerprecompiledheaders.h"
+
+#include "llfloaterwindowsize.h"
+
+// Viewer includes
+#include "llviewerwindow.h"
+
+// Linden library includes
+#include "llcombobox.h"
+#include "llfloater.h"
+#include "llfloaterreg.h"
+#include "lluictrl.h"
+
+// System libraries
+#include <boost/regex.hpp>
+
+// Extract from strings of the form "<width> x <height>", e.g. "640 x 480".
+bool extractWindowSizeFromString(const std::string& instr, U32 *width, U32 *height)
+{
+	boost::cmatch what;
+	// matches (any number)(any non-number)(any number)
+	const boost::regex expression("([0-9]+)[^0-9]+([0-9]+)");
+	if (boost::regex_match(instr.c_str(), what, expression))
+	{
+		*width = atoi(what[1].first);
+		*height = atoi(what[2].first);
+		return true;
+	}
+	
+	*width = 0;
+	*height = 0;
+	return false;
+}
+
+
+///----------------------------------------------------------------------------
+/// Class LLFloaterWindowSize
+///----------------------------------------------------------------------------
+class LLFloaterWindowSize
+:	public LLFloater
+{
+	friend class LLFloaterReg;
+private:
+	LLFloaterWindowSize(const LLSD& key);
+	virtual ~LLFloaterWindowSize();
+
+public:
+	/*virtual*/ BOOL postBuild();
+	void initWindowSizeControls();
+	void onClickSet();
+	void onClickCancel();
+};
+
+
+LLFloaterWindowSize::LLFloaterWindowSize(const LLSD& key) 
+:	LLFloater(key)
+{
+	//LLUICtrlFactory::getInstance()->buildFloater(this, "floater_window_size.xml");	
+}
+
+LLFloaterWindowSize::~LLFloaterWindowSize()
+{
+}
+
+BOOL LLFloaterWindowSize::postBuild()
+{
+	center();
+	initWindowSizeControls();
+	getChild<LLUICtrl>("set_btn")->setCommitCallback(
+		boost::bind(&LLFloaterWindowSize::onClickSet, this));
+	getChild<LLUICtrl>("cancel_btn")->setCommitCallback(
+		boost::bind(&LLFloaterWindowSize::onClickCancel, this));
+	setDefaultBtn("set_btn");
+	return TRUE;
+}
+
+void LLFloaterWindowSize::initWindowSizeControls()
+{
+	LLComboBox* ctrl_window_size = getChild<LLComboBox>("window_size_combo");
+	
+	// Look to see if current window size matches existing window sizes, if so then
+	// just set the selection value...
+	const U32 height = gViewerWindow->getWindowHeightRaw();
+	const U32 width = gViewerWindow->getWindowWidthRaw();
+	for (S32 i=0; i < ctrl_window_size->getItemCount(); i++)
+	{
+		U32 height_test = 0;
+		U32 width_test = 0;
+		ctrl_window_size->setCurrentByIndex(i);
+		std::string resolution = ctrl_window_size->getValue().asString();
+		if (extractWindowSizeFromString(resolution, &width_test, &height_test))
+		{
+			if ((height_test == height) && (width_test == width))
+			{
+				return;
+			}
+		}
+	}
+	// ...otherwise, add a new entry with the current window height/width.
+	LLUIString resolution_label = getString("resolution_format");
+	resolution_label.setArg("[RES_X]", llformat("%d", width));
+	resolution_label.setArg("[RES_Y]", llformat("%d", height));
+	ctrl_window_size->add(resolution_label, ADD_TOP);
+	ctrl_window_size->setCurrentByIndex(0);
+}
+
+void LLFloaterWindowSize::onClickSet()
+{
+	LLComboBox* ctrl_window_size = getChild<LLComboBox>("window_size_combo");
+	U32 width = 0;
+	U32 height = 0;
+	std::string resolution = ctrl_window_size->getValue().asString();
+	if (extractWindowSizeFromString(resolution, &width, &height))
+	{
+		LLViewerWindow::movieSize(width, height);
+	}
+	closeFloater();
+}
+
+void LLFloaterWindowSize::onClickCancel()
+{
+	closeFloater();
+}
+
+///----------------------------------------------------------------------------
+/// LLFloaterWindowSizeUtil
+///----------------------------------------------------------------------------
+void LLFloaterWindowSizeUtil::registerFloater()
+{
+	LLFloaterReg::add("window_size", "floater_window_size.xml",
+		&LLFloaterReg::build<LLFloaterWindowSize>);
+
+}
diff --git a/indra/newview/llfloaterwindowsize.h b/indra/newview/llfloaterwindowsize.h
new file mode 100644
index 0000000000000000000000000000000000000000..fd9d17323ac09d94db7b7ede724a8fd92278b458
--- /dev/null
+++ b/indra/newview/llfloaterwindowsize.h
@@ -0,0 +1,41 @@
+/** 
+ * @file llfloaterwindowsize.h
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LLFLOATERWINDOWSIZE_H
+#define LLFLOATERWINDOWSIZE_H
+
+// Allow user to set the window size for filming tutorials, machinima, etc
+namespace LLFloaterWindowSizeUtil
+{
+	void registerFloater();
+}
+
+#endif
diff --git a/indra/newview/llviewerfloaterreg.cpp b/indra/newview/llviewerfloaterreg.cpp
index 00db11a767fc9b52018782d17739574bac8a1f40..5e624eeec72fbcedaddba8ed51e033cccb66ae9b 100644
--- a/indra/newview/llviewerfloaterreg.cpp
+++ b/indra/newview/llviewerfloaterreg.cpp
@@ -111,6 +111,7 @@
 #include "llfloaterwater.h"
 #include "llfloaterwhitelistentry.h"
 #include "llfloaterwindlight.h"
+#include "llfloaterwindowsize.h"
 #include "llfloaterworldmap.h"
 #include "llimfloatercontainer.h"
 #include "llinspectavatar.h"
@@ -260,6 +261,7 @@ void LLViewerFloaterReg::registerFloaters()
 	LLFloaterReg::add("voice_controls", "floater_voice_controls.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLCallFloater>);
 	
 	LLFloaterReg::add("whitelist_entry", "floater_whitelist_entry.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterWhiteListEntry>);	
+	LLFloaterWindowSizeUtil::registerFloater();
 	LLFloaterReg::add("world_map", "floater_world_map.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterWorldMap>);	
 
 	// *NOTE: Please keep these alphabetized for easier merges
diff --git a/indra/newview/skins/default/xui/en/floater_window_size.xml b/indra/newview/skins/default/xui/en/floater_window_size.xml
new file mode 100644
index 0000000000000000000000000000000000000000..355d25778542db0881796c7aa2f9412bc2ffd4a9
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/floater_window_size.xml
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<floater
+  can_minimize="false" 
+  can_resize="false"
+  height="105"
+  layout="topleft"
+  name="window_size"
+  title="WINDOW SIZE"
+  width="205">
+  <string name="resolution_format">[RES_X] x [RES_Y]</string>
+    <text
+     follows="top|left"
+     font="SansSerif"
+     height="16"
+     left="15"
+     top="10" 
+     name="windowsize_text"
+     width="280">
+     Set window size:
+    </text>
+    <combo_box
+     allow_text_entry="true"
+     height="23"
+     follows="left|top"
+     left_delta="0"
+     max_chars="20"
+     name="window_size_combo"
+     tool_tip="width x height"
+     top_pad="5"
+     width="179">
+        <combo_box.item
+         label="1000 x 700 (default)"
+         name="item0"
+         value="1000 x 700" />
+        <combo_box.item
+         label="1024 x 768"
+         name="item1"
+         value="1024 x 768" />
+        <combo_box.item
+         label="1280 x 720 (720p)"
+         name="item2"
+         value="1280 x 720" />
+        <combo_box.item
+         label="1920 x 1080 (1080p)"
+         name="item3"
+         value="1920 x 1080" />
+    </combo_box>
+    <button
+     follows="right|bottom"
+     height="23"
+     label="Set"
+     left_delta="0"
+     name="set_btn"
+     top_pad="10"
+     width="85" />
+    <button
+     follows="right|bottom"
+     height="23"
+     label="Cancel"
+     left_pad="5"
+     name="cancel_btn"
+     top_delta="0"
+     width="85" />
+</floater>
diff --git a/indra/newview/skins/default/xui/en/menu_login.xml b/indra/newview/skins/default/xui/en/menu_login.xml
index 7a0b11872ac9330b8a501c743163bd2312c83f5d..690167bc33bab99f25dda03265682d8914dcff5c 100644
--- a/indra/newview/skins/default/xui/en/menu_login.xml
+++ b/indra/newview/skins/default/xui/en/menu_login.xml
@@ -233,6 +233,13 @@
                parameter="RegInClient" />
       </menu_item_check>
       <menu_item_separator />
+      <menu_item_call
+       label="Set Window Size..."
+       name="Set Window Size...">
+        <menu_item_call.on_click
+         function="Floater.Show"
+         parameter="window_size" />
+      </menu_item_call>
         <menu_item_call
          label="Show TOS"
          name="TOS">
diff --git a/indra/newview/skins/default/xui/en/menu_viewer.xml b/indra/newview/skins/default/xui/en/menu_viewer.xml
index 0640ae21de36a64e496244527e44942dea4f97d7..4e495bab3f0115caf70cfdd9fae47f127fb8e27d 100644
--- a/indra/newview/skins/default/xui/en/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/en/menu_viewer.xml
@@ -1119,6 +1119,13 @@
           <menu_item_call.on_click
              function="View.DefaultUISize" />
         </menu_item_call>
+        <menu_item_call
+         label="Set Window Size..."
+         name="Set Window Size...">
+          <menu_item_call.on_click
+           function="Floater.Show"
+           parameter="window_size" />
+        </menu_item_call>
         <menu_item_separator/>
         <menu_item_check
          label="Limit Select Distance"
diff --git a/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml b/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml
index 426a2b1f9ee9c6b03346bac68ac7c933d1be6aed..17651b8caae64ef4d69cba30a21f0608f0dfbe9c 100644
--- a/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml
+++ b/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml
@@ -10,10 +10,6 @@
  name="advanced"
  top="1"
  width="517">
-    <panel.string
-     name="resolution_format">
-        [RES_X] x [RES_Y]
-    </panel.string>
 	<panel.string
      name="aspect_ratio_text">
         [NUM]:[DEN]