I'm doing some animation and I'm having a problem with the figures. Imagine I have a 90 frame animation and I set a pose at frame 1 and set a pose at frame 60. It renders perfect from the interpolation. So then I try and set my frames at 70, 80 and 90 and find that the figure goes all out of whack and body parts are twisting out of control. I revert back to the perfect render of frames 1 thru 60 and in the animation palette I break spline at frame 60 and add on frames to 70, but with no motion past the orignal 60. What happens is the figure starts to sink into the ground. After much trial and lots of error I finally get 80 frames that are not quite what I'm looking for and I want to go in change some things, but I just know that trying to do simple edits to certain body parts are going to send the whole thing out of whack with limbs twisting every which way and the figure sinking into the ground. What am I missing and how do I advance past my first perfect 60 frames without screwing them up? I'm pretty frustrated and this is fairly important as a famous comic book artist is counting on me to animate this stuff and although I'm just an amatuer, he has all the confidence in the world and I don't want to let him down. I have a vision of how these animations should look, but this kink in Poser is driving me crazy. Anyone who can help has my thanks and I'll put Renderosity.Com in the credits for advice to me if you can help.