Well I have managed to crash 3 times until I got the hang of the instance lab and I have to say for me thats the best thing so far in 7. I made a fleet of ships in about 10 seconds and it worked great. Of course I am good at crashing Bryce. I did have one crash on a save. Tried to re-create it but 2cnd time it worked fine. Probably a hiccup with my new machine.  So far I am happy with the beta and if it is any indication of what the final version is going to be like then it will definitely become once again my favorite program. (the scene I crashed saving would have killed itself in 6.1 and 6.3 a dozen times at least:) )