Thank you about your interest to my problem.
I need your help.
I maded a model - there is only head and neck.
And I bended head, then there occur gap. - You can see red circle.
I tested it in poser 5 and poser 7.
(I made model in 3D max.)
I do not want the gap.
I want to smooth bend.
What's wrong with me?
Can you help me?