Ive had them before. Not as terrible as you though, but my Poser has crashed during animations larger than 30 frames. This happened using a computer with 128 MB RAM, and 32 MB graphics card. I havent had these problems since I upgraded to 4.02 and then later 4.03 so you might want to try that if you havent done that yet. I suspected that it had something to do with the programs way of memory handling so I didnt pay much mind but if upgrading doesnt work... try rendering animations a little bit at a time. Thats what I did. Live well.. /Jacko