Patch definitely improved things. I got an interseting opportunity to try the "no problem" installation of a work colleague last night. I broke it two minutes after starting :-0 I did that by loading one of his existing (P4) pz3s. Just to prove that it wasn't a file incompatibility issue we managed to recreate the same problem by rebuilding the scene from scratch in P5. The difference between myself and him is that from the outset I started trying to build on existing P4 projects. On the other hand, my colleague took a "learning curve" approach, starting with individual figures and simple scenes and learning the new features one by one. In short he simply hadn't got to the point where he was encountering problems in the few weeks since he had got the program. This is why I suspect a lot of people are seeing problems. Even with P4, many people, particularly those who prefer portraiture and/or figure studies, seemed to work with a purely 'studio' approach with everyhing in the scene pushed well forward in front of the camera and a lot of use being made of backdrops or background images. P5 seems to work well under these circumstances. Other people use more 'encompassing' environments (sometimes a necessity for animators), or larger and more complex compositions, and it is these people who, I suspect, are encountering or will encounter (after they passed the "learning curve") the greatest problems. Bill