Trees are fairly complex models, especially 67 of them...that would slow down ANY pc. Unless you are willing to wait the extra rendering time, try a work-around. If rotating duplicate trees works, then use that or there is rendering trees on 2d faces, or multimple rendering and then compositing, if you can do that. And, there is always add more ram, scenes with high poly counts need more ram to not freeze up. Any other work-arounds I'm forgetting? Agent Smith

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