from Paul Matz, "Understood. Well, I think it's reasonable to assume that the non-env var

case is the more tested case, and therefore it is correct to set
_supportsVertexBufferObjects to the same value as _fastPath. So here's a
change that does the same thing for the env var case."

src/osg/Geometry.cpp

@@ -891,7 +891,7 @@ bool Geometry::computeFastPathsUsed()
     if (_useDisplayList && s_DisableFastPathInDisplayLists)
     {
         osg::notify(osg::DEBUG_INFO)<<"Geometry::computeFastPathsUsed() - Disabling fast paths in display lists"<<std::endl;
-        _fastPath = false;
+        _supportsVertexBufferObjects = _fastPath = false;
         return _fastPath;
     }