> Yes, this is what I meant with seemingly nondeterministic behavior. > If you could find a way to reproduce such a behavior that would be very > useful. Well here's a simple scenario, don't know if it suffices: Snap B to right side of C. Snap A to right side of B. Snap E with D. Now move ABC a bit, and move ED a bit; ABC will reposition. HTH, Adrian. -- Czy ty orzeł, czy ty kawka? -wkrótce zdłabi kaszel, czkawka. Śmierć szyję zaszyje.