Nope it's not just you Zhann. I've got to be very careful if I'm doing a lot of work at one time in the DTE, 'cos if I've used it a lot it will crash the whole thing on me. That's usually just when I think I should save what I'm working on and then it's all lost. But it also has a good point, the patch gives you a load of trees in .bto format. You can only use these in Bryce of course but they are generally much better than what comes out of the tree lab and if you want you can still take them into the tree lab and play about. 8) Catlin