Hello, I am a digital editor/filmaker and I just got studio 5.5 for the mac. I want to know if there is some way to animate over a video background on a frame by frame basis. I have poser 2 which lets me do so, but the animations don't stay locked in place when the movie plays. I am growing distressed that I can't find a good way to (for example) place an animated CG ball bouncing around into a quicktime video I've captured from DV. I see that RDS has rotoscoping options, but they all seem to be for post render. I want the background of the project window to be the frame of the movie so that I can overlay the animation and match it to the video, it seems like a simple request...??? Any help would be greatly appreciated! Thanks! Steve