reverted operator specification

libs_required/ACG/Scenegraph/LightSourceNode.cc

@@ -108,7 +108,7 @@ void LightSourceNode::enter(GLState& _state, const DrawModes::DrawMode& /* _draw
       // correct Position for fixed Lights
       if(lights_[i].fixedPosition)
 	lights_[i].realPosition = 
-	  _state.inverse_modelview().operator*(lights_[i].position);
+	  _state.inverse_modelview() * lights_[i].position;
       else lights_[i].realPosition = lights_[i].position;
 
       ACG::GLState::enable(index2gl(i));