diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index 92d095b80..cf287f98c 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -435,11 +435,7 @@ LLGLManager::LLGLManager() :
 	mHasPointParameters(FALSE),
 	mHasDrawBuffers(FALSE),
 	mHasTextureRectangle(FALSE),
-	mHasTextureMultisample(FALSE),
 	mHasTransformFeedback(FALSE),
-	mMaxSampleMaskWords(0),
-	mMaxColorTextureSamples(0),
-	mMaxDepthTextureSamples(0),
 	mMaxIntegerSamples(0),
 
 	mHasAnisotropic(FALSE),
@@ -732,12 +728,10 @@ bool LLGLManager::initGL()
 	
 	stop_glerror();
 
-	if (mHasTextureMultisample)
+	if (mHasFramebufferMultisample)
 	{
-		glGetIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &mMaxColorTextureSamples);
-		glGetIntegerv(GL_MAX_DEPTH_TEXTURE_SAMPLES, &mMaxDepthTextureSamples);
 		glGetIntegerv(GL_MAX_INTEGER_SAMPLES, &mMaxIntegerSamples);
-		glGetIntegerv(GL_MAX_SAMPLE_MASK_WORDS, &mMaxSampleMaskWords);
+		glGetIntegerv(GL_MAX_SAMPLES, &mMaxSamples);
 	}
 
 	stop_glerror();
@@ -749,24 +743,12 @@ bool LLGLManager::initGL()
 	}
 #endif
 	stop_glerror();
-	mHasTextureMultisample = FALSE;
-#if LL_WINDOWS
-	if (mIsATI)
-	{ //using multisample textures on ATI results in black screen for some reason
-		mHasTextureMultisample = FALSE;
-	}
-#endif
 
 	if (mIsIntel && mGLVersion <= 3.f)
 	{ //never try to use framebuffer objects on older intel drivers (crashy)
 		mHasFramebufferObject = FALSE;
 	}
 
-	if (mHasFramebufferObject)
-	{
-		glGetIntegerv(GL_MAX_SAMPLES, &mMaxSamples);
-	}
-
 	stop_glerror();
 	
 	setToDebugGPU();
@@ -847,14 +829,6 @@ std::string LLGLManager::getRawGLString()
 	return gl_string;
 }
 
-U32 LLGLManager::getNumFBOFSAASamples(U32 samples)
-{
-	samples = llmin(samples, (U32) mMaxColorTextureSamples);
-	samples = llmin(samples, (U32) mMaxDepthTextureSamples);
-	samples = llmin(samples, (U32) 4);
-	return samples;
-}
-
 void LLGLManager::shutdownGL()
 {
 	if (mInited)
@@ -960,7 +934,6 @@ void LLGLManager::initExtensions()
 	mHasDrawBuffers = ExtensionExists("GL_ARB_draw_buffers", gGLHExts.mSysExts);
 	mHasBlendFuncSeparate = ExtensionExists("GL_EXT_blend_func_separate", gGLHExts.mSysExts);
 	mHasTextureRectangle = ExtensionExists("GL_ARB_texture_rectangle", gGLHExts.mSysExts);
-	mHasTextureMultisample = ExtensionExists("GL_ARB_texture_multisample", gGLHExts.mSysExts);
 	mHasDebugOutput = ExtensionExists("GL_ARB_debug_output", gGLHExts.mSysExts);
 	mHasTransformFeedback = mGLVersion >= 4.f ? TRUE : FALSE;
 #if !LL_DARWIN
@@ -1198,13 +1171,6 @@ void LLGLManager::initExtensions()
 	{
 		glBlendFuncSeparateEXT = (PFNGLBLENDFUNCSEPARATEEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glBlendFuncSeparateEXT");
 	}
-	if (mHasTextureMultisample)
-	{
-		glTexImage2DMultisample = (PFNGLTEXIMAGE2DMULTISAMPLEPROC) GLH_EXT_GET_PROC_ADDRESS("glTexImage2DMultisample");
-		glTexImage3DMultisample = (PFNGLTEXIMAGE3DMULTISAMPLEPROC) GLH_EXT_GET_PROC_ADDRESS("glTexImage3DMultisample");
-		glGetMultisamplefv = (PFNGLGETMULTISAMPLEFVPROC) GLH_EXT_GET_PROC_ADDRESS("glGetMultisamplefv");
-		glSampleMaski = (PFNGLSAMPLEMASKIPROC) GLH_EXT_GET_PROC_ADDRESS("glSampleMaski");
-	}
 	if (mHasTransformFeedback)
 	{
 		glBeginTransformFeedback = (PFNGLBEGINTRANSFORMFEEDBACKPROC) GLH_EXT_GET_PROC_ADDRESS("glBeginTransformFeedback");
diff --git a/indra/llrender/llgl.h b/indra/llrender/llgl.h
index 06f6155c9..84bb96917 100644
--- a/indra/llrender/llgl.h
+++ b/indra/llrender/llgl.h
@@ -104,11 +104,7 @@ public:
 	BOOL mHasDrawBuffers;
 	BOOL mHasDepthClamp;
 	BOOL mHasTextureRectangle;
-	BOOL mHasTextureMultisample;
 	BOOL mHasTransformFeedback;
-	S32 mMaxSampleMaskWords;
-	S32 mMaxColorTextureSamples;
-	S32 mMaxDepthTextureSamples;
 	S32 mMaxIntegerSamples;
 
 	// Other extensions.
@@ -155,7 +151,6 @@ public:
 	void printGLInfoString();
 	void getGLInfo(LLSD& info);
 
-	U32 getNumFBOFSAASamples(U32 desired_samples = 32);
 	// In ALL CAPS
 	std::string mGLVendor;
 	std::string mGLVendorShort;
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index 1e698adfc..6d7054e7e 100644
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -330,7 +330,6 @@ S32 LLImageGL::updateBoundTexMem(const S32 mem, const S32 ncomponents, S32 categ
 //static 
 void LLImageGL::destroyGL(BOOL save_state)
 {
-	deleteDeadTextures(); //Dump unimportant textures.
 	for (S32 stage = 0; stage < gGLManager.mNumTextureUnits; stage++)
 	{
 		gGL.getTexUnit(stage)->unbind(LLTexUnit::TT_TEXTURE);
@@ -364,7 +363,6 @@ void LLImageGL::destroyGL(BOOL save_state)
 	}
 	llinfos << "Storing " << stored_count << " images..." << llendl;
 	sAllowReadBackRaw = false ;
-	deleteDeadTextures();//Now, actually call glDeleteTextures for everything.
 }
 
 //static 
@@ -1528,7 +1526,7 @@ void LLImageGL::deleteDeadTextures()
 {
 	bool reset = false;
 
-	for(U32 i=0;i<LLTexUnit::TT_NONE;++i)
+	/*for(U32 i=0;i<LLTexUnit::TT_NONE;++i)
 	{
 		for(dead_texturelist_t::iterator it=sDeadTextureList[i].begin();it!=sDeadTextureList[i].end();++it)
 		{
@@ -1554,7 +1552,7 @@ void LLImageGL::deleteDeadTextures()
 				stop_glerror();
 			}
 		}
-	}
+	}*/
 
 	if (reset)
 	{
diff --git a/indra/llrender/llrendertarget.cpp b/indra/llrender/llrendertarget.cpp
index 6ea20e977..589c0dc0d 100644
--- a/indra/llrender/llrendertarget.cpp
+++ b/indra/llrender/llrendertarget.cpp
@@ -699,6 +699,28 @@ bool LLMultisampleBuffer::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth
 	release();
 	stop_glerror();
 
+	if (!gGLManager.mHasFramebufferMultisample || !gGLManager.mHasFramebufferObject || !(sUseFBO || use_fbo))
+		return false;
+
+	if(color_fmt != GL_RGBA)
+	{
+		llwarns << "Unsupported color format: " << color_fmt << llendl;
+		return false;
+	}
+
+	//Restrict to valid sample count
+	{
+		mSamples = samples;
+		mSamples = llmin(mSamples, (U32)4);	//Cap to prevent memory bloat.
+		mSamples = llmin(mSamples, (U32) gGLManager.mMaxIntegerSamples);//GL_RGBA
+
+		if(depth && !stencil)
+			mSamples = llmin(mSamples, (U32) gGLManager.mMaxSamples);	//GL_DEPTH_COMPONENT16_ARB
+	}
+
+	if (mSamples <= 1)
+		return false;
+	
 	mResX = resx;
 	mResY = resy;
 
@@ -706,30 +728,16 @@ bool LLMultisampleBuffer::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth
 	mUseDepth = depth;
 	mStencil = stencil;
 
-	if (!gGLManager.mHasFramebufferMultisample)
-	{
-		llerrs << "Attempting to allocate unsupported render target type!" << llendl;
-		return false;
-	}
-
-	mSamples = gGLManager.getNumFBOFSAASamples(samples);
-	
-	if (mSamples <= 1)
-	{
-		llerrs << "Cannot create a multisample buffer with less than 2 samples." << llendl;
-		return false;
-	}
-
-	stop_glerror();
-
-	if ((sUseFBO || use_fbo) && gGLManager.mHasFramebufferObject)
 	{
 
 		if (depth)
 		{
 			stop_glerror();
 			if(!allocateDepth())
+			{
+				release();
 				return false;
+			}
 			stop_glerror();
 		}
 		glGenFramebuffers(1, (GLuint *) &mFBO);
@@ -779,6 +787,7 @@ bool LLMultisampleBuffer::addColorAttachment(U32 color_fmt)
 	if (glGetError() != GL_NO_ERROR)
 	{
 		llwarns << "Unable to allocate color buffer for multisample render target." << llendl;
+		release();
 		return false;
 	}
 	
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index 0eb0b3cc2..6ab2cfd17 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -343,7 +343,7 @@ void LLViewerShaderMgr::setShaders()
 	
 	//setup preprocessor definitions
 	LLShaderMgr::instance()->mDefinitions.clear();
-	LLShaderMgr::instance()->mDefinitions["samples"] = llformat("%d", gSavedSettings.getU32("RenderFSAASamples")/*gGLManager.getNumFBOFSAASamples(gSavedSettings.getU32("RenderFSAASamples"))*/);
+	LLShaderMgr::instance()->mDefinitions["samples"] = llformat("%d", gSavedSettings.getU32("RenderFSAASamples"));
 	LLShaderMgr::instance()->mDefinitions["NUM_TEX_UNITS"] = llformat("%d", gGLManager.mNumTextureImageUnits);
 
 	initAttribsAndUniforms();
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index bd2424294..27632dcfc 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -632,12 +632,6 @@ void LLPipeline::allocateScreenBuffer(U32 resX, U32 resY)
 	static const LLCachedControl<U32> RenderFSAASamples("RenderFSAASamples",0);
 	U32 samples = RenderFSAASamples.get() - RenderFSAASamples.get() % 2;	//Must be multipe of 2.
 
-	//Don't multisample if not using FXAA, or if fbos are disabled, or if multisampled fbos are not supported.
-	if(!LLPipeline::sRenderDeferred && (!LLRenderTarget::sUseFBO || !gGLManager.mHasFramebufferMultisample))
-	{
-		samples = 0;
-	}
-
 	//try to allocate screen buffers at requested resolution and samples
 	// - on failure, shrink number of samples and try again
 	// - if not multisampled, shrink resolution and try again (favor X resolution over Y)
@@ -693,6 +687,7 @@ bool LLPipeline::allocateScreenBuffer(U32 resX, U32 resY, U32 samples)
 	}
 
 	mSampleBuffer.release();
+	mScreen.release();
 
 	if (LLPipeline::sRenderDeferred)
 	{
@@ -790,7 +785,6 @@ bool LLPipeline::allocateScreenBuffer(U32 resX, U32 resY, U32 samples)
 		if (!mScreen.allocate(resX, resY, GL_RGBA, TRUE, TRUE, LLTexUnit::TT_RECT_TEXTURE, FALSE)) return false;
 		if(samples > 1)
 		{
-			
 			if(mSampleBuffer.allocate(resX,resY,GL_RGBA,TRUE,TRUE,LLTexUnit::TT_RECT_TEXTURE,FALSE,samples))
 				mScreen.setSampleBuffer(&mSampleBuffer);
 			else
@@ -906,6 +900,8 @@ void LLPipeline::releaseScreenBuffers()
 	{
 		mShadow[i].release();
 	}
+
+	mSampleBuffer.release();
 }