I crash on the following.

-Every use of the Instance Lab crashes my system within seconds of trying to manipulate the different instances. 

-Use of the spray render about 50% of the time, or at least locking up the program forcing me to close out and re-enter.

-The Tree Lab if I change certain functions.

So, I'm crashing about every 15 minutes or less.

Then again, I have very low ram on my system (256mb).  Was fine for Bryce 5, but Bryce 7 kills it like a plate in a shooting gallery.

So far, I'm very disappointed.  I can't get a single scene done because it crashes before I can save it.