Here's what I think'll do it... Open up your View: Animation Pallette and check out the line for her head. Check out the line for her head, then click on frame 1 and click the "Break spline" button (looks kinda like a wavy line with a small striped sphere in the middle). This'll put a black diagonal line through the red frame box. Do the same for frame 399 after making it a keyframe for the head. Having thus "broken the spline curve" for this period of time, your character's head should do nothing--what you've done is prevented poser from "interpolating" for the given time. It always seems to think we want the part we're moving and everything around it to keep flyin' every which way--well, you can tell it otherwise now. For further reference, check your manual. -Jesse Bond