Poser 5 is still very buggy. Memory management is horrible. I have issues I have documented in the beta forum throughout Christmas that I expect them to look at and address in upcoming service releases. The hair collision is almost useless and it has been like this since day one, was documented as a bug since day one by Nerd3D too and I haven't seen it being addressed in any service release yet. The general collision detection doesn't works as it should either. A user (Ockam I think is his name) is working on collision detection via Phyton that seems to work a lot better than what Curious Labs have managed to put in the package . I am keeping my faith in them but I will be very disapointed if they stop trying to fix something that should have worked long ago. There has to be an explanation to that other software that they are selling because I agree their top priority should be delivering a stable Poser 5.