Tried various things last night, seems to be when the image size went over 1000 x 1200 pixels the program crashes half way through the render -it does the shadow part and just starts to draw the render then closes the program . Will be more scientific tonight - again this is a mac on OSX and 1.33 MHZ and 1 GB of ram . Thought it might be my Daz additions/addiction so I reloaded just the basic poser program and parts and still the same . Same figure and resolution fireflyed in poser 5 fine. On the up side I found where it keeps all those previous renders phil