Hello spinners, C4 is much better on the animation side now. (working on a mac) I've complete several projects for broadcast. Motion paths behave and being able to use multiple computers on the same render has shaved hours off of the render time. What kind of delays are you getting while rendering? As far as "weird motion issues", Carrara automatically has bezier selected as the tweener function. Depending on the type of motion you have, it can exaggerate some movements and "overextend" motion between key frames. I usually set my default to linear and then convert to bezier as required between keyframes. Mark