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diff --git a/linden/indra/newview/llfloaterhardwaresettings.cpp b/linden/indra/newview/llfloaterhardwaresettings.cpp
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+++ b/linden/indra/newview/llfloaterhardwaresettings.cpp
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+/** 
+ * @file llfloaterhardwaresettings.cpp
+ * @brief Menu of all the different graphics hardware settings
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2008, 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 "llfloaterhardwaresettings.h"
+#include "llfloaterpreference.h"
+#include "llviewerwindow.h"
+#include "llviewercontrol.h"
+#include "llviewerimagelist.h"
+#include "llfeaturemanager.h"
+#include "llstartup.h"
+
+#include "llradiogroup.h"
+#include "llvieweruictrlfactory.h"
+
+#include "llimagegl.h"
+#include "pipeline.h"
+
+LLFloaterHardwareSettings* LLFloaterHardwareSettings::sHardwareSettings = NULL;
+
+LLFloaterHardwareSettings::LLFloaterHardwareSettings() : LLFloater("Hardware Settings Floater")
+{
+        gUICtrlFactory->buildFloater(this, "floater_hardware_settings.xml");
+        
+        // load it up
+        initCallbacks();
+}
+
+LLFloaterHardwareSettings::~LLFloaterHardwareSettings()
+{
+}
+
+void LLFloaterHardwareSettings::onClickHelp(void* data)
+{
+        const char* xml_alert = "HardwareSettingsHelpButton";
+        gViewerWindow->alertXml(xml_alert);
+}
+
+void LLFloaterHardwareSettings::initCallbacks(void) 
+{
+}
+
+// menu maintenance functions
+
+void LLFloaterHardwareSettings::refresh()
+{
+        LLPanel::refresh();
+
+        mUseVBO = gSavedSettings.getBOOL("RenderVBOEnable");
+        mUseAniso = gSavedSettings.getBOOL("RenderAnisotropic");
+        mGamma = gSavedSettings.getF32("RenderGamma");
+        mVideoCardMem = gSavedSettings.getS32("TextureMemory");
+        mFogRatio = gSavedSettings.getF32("RenderFogRatio");
+        mProbeHardwareOnStartup = gSavedSettings.getBOOL("ProbeHardwareOnStartup");
+
+        refreshEnabledState();
+}
+
+void LLFloaterHardwareSettings::refreshEnabledState()
+{
+        S32 min_tex_mem = LLViewerImageList::getMinVideoRamSetting();
+        S32 max_tex_mem = LLViewerImageList::getMaxVideoRamSetting();
+        childSetMinValue("GrapicsCardTextureMemory", min_tex_mem);
+        childSetMaxValue("GrapicsCardTextureMemory", max_tex_mem);
+
+        if (!gFeatureManagerp->isFeatureAvailable("RenderVBOEnable") ||
+                !gGLManager.mHasVertexBufferObject)
+        {
+                childSetEnabled("vbo", FALSE);
+        }
+
+        // if no windlight shaders, turn off nighttime brightness, gamma, and fog distance
+        childSetEnabled("gamma", !gPipeline.canUseWindLightShaders());
+        childSetEnabled("(brightness, lower is brighter)", !gPipeline.canUseWindLightShaders());
+        childSetEnabled("fog", !gPipeline.canUseWindLightShaders());
+
+}
+
+// static instance of it
+LLFloaterHardwareSettings* LLFloaterHardwareSettings::instance()
+{
+        if (!sHardwareSettings)
+        {
+                sHardwareSettings = new LLFloaterHardwareSettings();
+                sHardwareSettings->close();
+        }
+        return sHardwareSettings;
+}
+void LLFloaterHardwareSettings::show()
+{
+        LLFloaterHardwareSettings* hardSettings = instance();
+        hardSettings->refresh();
+        hardSettings->center();
+
+        // comment in if you want the menu to rebuild each time
+        //gUICtrlFactory->buildFloater(hardSettings, "floater_hardware_settings.xml");
+        //hardSettings->initCallbacks();
+
+        hardSettings->open();
+}
+
+bool LLFloaterHardwareSettings::isOpen()
+{
+        if (sHardwareSettings != NULL) 
+        {
+                return true;
+        }
+        return false;
+}
+
+// virtual
+void LLFloaterHardwareSettings::onClose(bool app_quitting)
+{
+        if (sHardwareSettings)
+        {
+                sHardwareSettings->setVisible(FALSE);
+        }
+}
+
+
+//============================================================================
+
+BOOL LLFloaterHardwareSettings::postBuild()
+{
+        requires("ani", WIDGET_TYPE_CHECKBOX);
+        requires("gamma", WIDGET_TYPE_SPINNER);
+        requires("vbo", WIDGET_TYPE_CHECKBOX);
+        requires("GrapicsCardTextureMemory", WIDGET_TYPE_SLIDER);
+        requires("fog", WIDGET_TYPE_SPINNER);
+
+        if (!checkRequirements())
+        {
+                return FALSE;
+        }
+
+        childSetAction("OK", onBtnOK, this);
+
+        refresh();
+
+        return TRUE;
+}
+
+
+void LLFloaterHardwareSettings::apply()
+{
+        // Anisotropic rendering
+        BOOL old_anisotropic = LLImageGL::sGlobalUseAnisotropic;
+        LLImageGL::sGlobalUseAnisotropic = childGetValue("ani");
+        if (old_anisotropic != LLImageGL::sGlobalUseAnisotropic)
+        {
+                BOOL logged_in = (LLStartUp::getStartupState() >= STATE_STARTED);
+                gViewerWindow->restartDisplay(logged_in);
+        }
+
+        refresh();
+}
+
+
+void LLFloaterHardwareSettings::cancel()
+{
+        gSavedSettings.setBOOL("RenderVBOEnable", mUseVBO);
+        gSavedSettings.setBOOL("RenderAnisotropic", mUseAniso);
+        gSavedSettings.setF32("RenderGamma", mGamma);
+        gSavedSettings.setS32("TextureMemory", mVideoCardMem);
+        gSavedSettings.setF32("RenderFogRatio", mFogRatio);
+        gSavedSettings.setBOOL("ProbeHardwareOnStartup", mProbeHardwareOnStartup );
+
+        close();
+}
+
+// static 
+void LLFloaterHardwareSettings::onBtnOK( void* userdata )
+{
+        LLFloaterHardwareSettings *fp =(LLFloaterHardwareSettings *)userdata;
+        fp->apply();
+        fp->close(false);
+}
+