Please convey my thanks to the bugfix team for adding that Normals_Forward option to the Material Room root nodes; it really does seem to help with double-sided polys. Perhaps I won't have to use the displacement trick any longer.

I can live with the fact that my Figure Circle and Transparency Display settings still aren't retained between sessions, but if they could just fix that reflection culling bug so I don't have to leave smoothing enabled all the time ....