Experiment: Loaded old urban scene with 235 separate objects (many imported houses, 5 P4 people, clutter, 3 terrains but no ecosystems). Then, as an experiment, added 3 more houses including 1 by zippy, iskwen castle, a new terrain, V3 with dress, hair, boots, jewellry plus mil cat. Up to 1.2 mil polys and still ok. Added V3 and P5 child with clothes, bag, toy all pre-saved as vob. Still ok. More buildings, 4 large xfrog trees. Up to 2.97 mil polys and still going. Moved a few things around. Still ok. Then tried to drop one tree to surface. Bang! Crash! Out of memory. Maybe it is ok to keep simply adding objects as these are just appended to some sort of list structure internally. Certain sorts of modification may require storing some sort of 'shadow' object or list to keep track of changes. That would need a lot more memory, especially if the whole scene was duplicated rather than just the object changed. It is only a theory and may be wide of the mark, but it might explain problems I've had when creating textures for new objects. The object was imported to the standard startup scene, materials loaded, edited etc. The object was saved at various points but not the scene. After a while Vue would crash.

Jane