I must be doing something wrong with the interface then cause my interface is much slower in P5 than P4 PP after the patch. In P4 I can spin the camera around my figures smoothly in fast track mode. In p5 it jerks. In fact, I have a city street scene that is enormous. In P4 PPP I can slide around and zoom and rotate the camera in real time in fast track mode in texture preview and not see it stall at all. In P5, I have to drop the scene to smooth shaded or wire frame mode to get the same smooth panning. In fact I can run an animation in P4 PP in full tracking mode and have it preview very nicely. In p5, forget it. One thing might be translucent materials. Are the people getting good preview speeds viewing objects without wigs or transmapped objects?