Well now - I don't know that it's a Poser 6 thing to have memory problems on successive renders - I had that problem in Poser 4 as well. I got in the habit of closing Poser every few renders then. When I moved up to Windows XP my memory problems with 4 disappeared, but v6 is much more memory intensive than 4 so it may just be hitting the wall in XP. I don't think a lot of the Poser base code has been rewritten in awhile, so some of the old problems are still hanging around... Poser uses a lot of memory when rendering compared to other software that I have, but I still like it!