diff --git a/Engine/source/gfx/gl/gfxGLTextureManager.cpp b/Engine/source/gfx/gl/gfxGLTextureManager.cpp
index 70a5e4303..3b5ff0294 100644
--- a/Engine/source/gfx/gl/gfxGLTextureManager.cpp
+++ b/Engine/source/gfx/gl/gfxGLTextureManager.cpp
@@ -228,20 +228,20 @@ void GFXGLTextureManager::innerCreateTexture( GFXGLTextureObject *retTex,
 
 static void _fastTextureLoad(GFXGLTextureObject* texture, GBitmap* pDL)
 {
-   glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, texture->getBuffer());
+   glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->getBuffer());
    U32 bufSize = pDL->getWidth(0) * pDL->getHeight(0) * pDL->getBytesPerPixel();
-   glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, bufSize, NULL, GL_STREAM_DRAW);
+   glBufferData(GL_PIXEL_UNPACK_BUFFER, bufSize, NULL, GL_STREAM_DRAW);
    
    if(pDL->getFormat() == GFXFormatR8G8B8A8 || pDL->getFormat() == GFXFormatR8G8B8X8)
    {
       FrameAllocatorMarker mem;
       U8* pboMemory = (U8*)mem.alloc(bufSize);
       GFX->getDeviceSwizzle32()->ToBuffer(pboMemory, pDL->getBits(0), bufSize);
-      glBufferSubData(GL_PIXEL_UNPACK_BUFFER_ARB, 0, bufSize, pboMemory );
+      glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, bufSize, pboMemory );
    }
    else
    {
-      glBufferSubData(GL_PIXEL_UNPACK_BUFFER_ARB, 0, bufSize, pDL->getBits(0) );
+      glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, bufSize, pDL->getBits(0) );
    }
    
    if(texture->getBinding() == GL_TEXTURE_2D)
@@ -249,7 +249,7 @@ static void _fastTextureLoad(GFXGLTextureObject* texture, GBitmap* pDL)
    else
 	   glTexSubImage1D(texture->getBinding(), 0, 0, (pDL->getWidth(0) > 1 ? pDL->getWidth(0) : pDL->getHeight(0)), GFXGLTextureFormat[pDL->getFormat()], GFXGLTextureType[pDL->getFormat()], NULL);
    
-   glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
+   glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
 }
 
 static void _slowTextureLoad(GFXGLTextureObject* texture, GBitmap* pDL)
diff --git a/Engine/source/gfx/gl/gfxGLTextureObject.cpp b/Engine/source/gfx/gl/gfxGLTextureObject.cpp
index ed229e5d9..0f76b9a18 100644
--- a/Engine/source/gfx/gl/gfxGLTextureObject.cpp
+++ b/Engine/source/gfx/gl/gfxGLTextureObject.cpp
@@ -98,8 +98,8 @@ void GFXGLTextureObject::unlock(U32 mipLevel)
 
    PRESERVE_TEXTURE(mBinding);
    glBindTexture(mBinding, mHandle);
-   glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, mBuffer);
-   glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, (mLockedRectRect.extent.x + 1) * (mLockedRectRect.extent.y + 1) * mBytesPerTexel, mFrameAllocatorPtr, GL_STREAM_DRAW);
+   glBindBuffer(GL_PIXEL_UNPACK_BUFFER, mBuffer);
+   glBufferData(GL_PIXEL_UNPACK_BUFFER, (mLockedRectRect.extent.x + 1) * (mLockedRectRect.extent.y + 1) * mBytesPerTexel, mFrameAllocatorPtr, GL_STREAM_DRAW);
 
    if(mBinding == GL_TEXTURE_2D)
 	   glTexSubImage2D(mBinding, mipLevel, mLockedRectRect.point.x, mLockedRectRect.point.y, 
@@ -108,7 +108,7 @@ void GFXGLTextureObject::unlock(U32 mipLevel)
 		glTexSubImage1D(mBinding, mipLevel, (mLockedRectRect.point.x > 1 ? mLockedRectRect.point.x : mLockedRectRect.point.y), 
 		  (mLockedRectRect.extent.x > 1 ? mLockedRectRect.extent.x : mLockedRectRect.extent.y), GFXGLTextureFormat[mFormat], GFXGLTextureType[mFormat], NULL);
    
-   glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
+   glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
 
    mLockedRect.bits = NULL;
 #if TORQUE_DEBUG