Well, a would like to add my little thoughts, too: You all are talking about image renders... The problem is that you cant do a movie render higher than your screen resolution... and doing a movie render is when poser normally crashes with "insufficient disk space". In my opinion This behaviour has nothing to do with your actually memory size, as sometimes you can render 10 frames, then you can render none, and on your next try you can render another fifty... Anyway, I switched over to C4d, and the rendering quality AND speed are astonishing...