Black Cat - There's a fix to the instant rendering issue. Basically its if you saved the Pz3 file right after you rendered it, P5 saves a line in your file telling it to preview in render mode. This causes your scene to render anytime its loaded, camera moves etc. You can fix this in two ways: 1. load your scene in p4 or p5 and wait till it renders or stop the render. Select a different preview mode then save the file. I haven't tried this myself since I do step 2 but I'm assuming this will work. or 2. Open the pz3 in a text editor like notepad and find the doc section at the very bottom of the file. You will see: doc { displayMode TEXTURESHADED displayMode CUSTOMRENDER Remove the displayMode CUSTOMRENDER line. This is probably not supposed to be there since it makes no sense and causes the render. Now save the file and open it. Your doc should not rerender now. If you see two displayMode lines its probably a bug since the second line no doubt cancels the first and is redundant. Hope that helps.