LOL! Doesn't THAT happen alot! I suggest sequential files. I have had a couple of renders go bad, (sounds like a good 'B' movie title... "When Renders go Bad!) and when I've used sequential files, I can fix the file and continue from where I left off. Otherwise I'm starting from the beginning, since my animation file is corrupted by Carrara crashing! Some files won't render from the middle also. (At least not in C1. I haven't tried them in C2) If your using physics, or behaviors, C1 had problems trying to figure out the proper positions of geometry in the middle of a file, since it doesn't have the earlier data to continue from. Hope this helps! :>