I don't have that happening anymore. Must be a 4.05-02 thing that fixed it, but really I think it might have been solved by 4.03-02. If you're still on 4.02, I'd say you're lucky to not be having crashes on those long renders, because it seems to me that that was one of the things 4.03 fixed. Maybe that was render to disk though...I can't remember now. But you know, looking at this today again, I think it looks pretty good. I was loking at some Cinema 4D and Lightwave pictures, and I swear, this could probably be passed off as one of those.