There are some scene props that have transparent panels that work beautifully in Poser 4 but not very well in Poser 5. It may have something to do with the Firefly Renderings but I don't know for sure...I'm a techno ninny. I haven't any problem with regular props once you uncheck Smooth Polygons (as described above). Most texture problems can be overcome by using displacement at a very low setting. I have a huge failure rate with Neftis hair...I'm afraid nearly all her hair hangs up my Poser 5 and I'm an UV mapper dropout. It's beautiful but the technique of using it is beyond me (but much is).