I've been having a problem here and it may be related to memory, but maybe not. When rendering an animation (anything above Preview quality and more than 500 frames) on my Macbook Pro laptop (with 2 GB of RAM, albeit 400MB of junk on my desktop - I'm embarrassed about that), P7 shuts down before the output is complete. I've had no such problems on my Mac Pro with 4 GB RAM and can't figure out the difference. Also on the laptop, I rendered the first 300 frames of the same animation against a white background (as opposed to the Poser-specific 2D background I was using) and had no problem. I also note that this just started happening after I installed the latest P7 Service Release. Anyone else run into the same issue during moviemaking? P5, P6 and P7 have never shut down on me before, for any reason, and I'm stumped.