Here ya go. When I load a figure. The main camera is active by default. If I run your script. This error message pops up. If I select the head first. It runs fine. The strange thing is. Once the script runs successfully once. Then it will always work again. Even if I don't have the head selected. If I shut down Poser. The problem starts over from scratch. From the looks of the error message. It looks like I might need a .dll that TKinter uses. Or there is a driver conflict of some kind with my machine. ScottA