diff --git a/src/osg/State.cpp b/src/osg/State.cpp
index b26cbca65..5e5d91f01 100644
--- a/src/osg/State.cpp
+++ b/src/osg/State.cpp
@@ -29,7 +29,12 @@ State::State()
     _modelView = _identity;
 
     _abortRenderingPtr = false;    
+
+#if 1
     _checkGLErrors = ONCE_PER_FRAME;
+#else    
+    _checkGLErrors = ONCE_PER_ATTRIBUTE;
+#endif
 
     _currentActiveTextureUnit=0;
     _currentClientActiveTextureUnit=0;
diff --git a/src/osg/TexGenNode.cpp b/src/osg/TexGenNode.cpp
index 05c4ee4bf..f1c62e645 100644
--- a/src/osg/TexGenNode.cpp
+++ b/src/osg/TexGenNode.cpp
@@ -35,8 +35,12 @@ TexGenNode::TexGenNode(const TexGenNode& cn, const CopyOp& copyop):
 {
 }
 
-TexGenNode::TexGenNode(TexGen *texgen)
+TexGenNode::TexGenNode(TexGen *texgen):
+    _referenceFrame(RELATIVE_RF)
 {
+    // switch off culling of tex gen nodes by default.
+    setCullingActive(false);
+
     _textureUnit = 0;
     _value = StateAttribute::ON;
     _stateset = new StateSet;