You can also Pin the points down so that they won't ALL move, which I think is part of your problem. But first I will join the chorus and ask if you've installed SP4.1? Poser 5 shouldn't be crashing like you are expiriencing it. What are your computer specs?

FREEBIES! | My Gallery | My Store | My FB | Tumblr |
You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.