Quote - What do you mean by "crazy distortons in the geometry"? Do you mean actual distortion or just shading anomalies?

Thanks for the reply.. I get anything from shading distortons to holes in the mesh or odd welding of parts of the model.  It's also happened when I've tried to export something as simple as a wall with a door opening that I made myself.   I checked the normals in C4D and they were ok. Yet it still came into Poser with shading artifacts and a partially closed door opening ( a triangular poly inserted across the door opening).