One thing I learned recently regarding Poser and BVH is that if you're using a complex higher-end character like V4 or V3, it makes a big difference to first import the BVH file onto a simple character, like the "Stick Man/Woman" character, save that as an animation in the Pose library, then apply the animation to your more complex character. Why this works I don't know exactly, but I suspect that Poser does some kind of skeleton retargeting when it applies the animation internally that it doesn't do when you import the BVH directly. In any case, in the tests I've done, jitter and especially foot skating or feet sticking through the floor can be pretty much eliminated by using this method. --Tim