May sound a bit stupid,but after some observation there are props that poser 5 ( specially the firefly doesnt like) Im on a amd 2000xp,768 mb ram......so no weak system and p5 is running smooth.i can use the mildragon and a viccy with clothes all no problems. But if i use only some more or less simple props( nothing else) and start render(same settings as before) poser slows down,starts swapping to hd like crazy,rendering slows down.....and mostly never finish This only happens withsome props,and till now,they have something common, the geometriedata is included in the pp2 file and if i start render with smoothing enabled they look like gasballoons. smoothing enabled make them look normal,but the renderspeed is not improved and the same as above starts