Okay, I've been trying to recreate the trees that are on the link that Zhann sent, and I can do a few of them, but most cause bryce to tank out on my system. The crashes seem to be isolated to when I try to increase the segment count, and branches per segment. I noticed that on some trees you can get away with increasing these sliders up by increments of 1, let it compute, then 1 more. God forbid though you change the randomness, gravity or distribution AFTER you've upped the branches or segments. At least that's been my problem. Anyone else sharing this dilema?