This is a new one! I'm working on a shot that is 430 frames. The first 220 or so frames are just fine. When I get to working on about the last 200 frames it's very slow. I don't get the spinning ball or anything. It's just is very slow to move things around and go from frame to frame. Even slow to move things in the GE. Any idea why only the second part of the shot is acting like that?