i just keep thinking it is math. rounding, or something. But i had not thought of UPPING the frame rate. I just got done with two runs at 24 FPS and 20 FPS, no improvement. I am just about to execute a radical run. I threw away two lights. I put the shadow map from 512 to 3000 on the last light. I checked every morph on the light in the graph for ANY keyframes...found none....straight lines all the way across. I am still attacking with everything I can think of. I will try your 60 fps idea also. I would start removing textures, etc., except that I remember this problem other times in the past, even on Poser4PP. ::::: Opera :::::