I just wanted to bring up that since upgrading to Fusion 2.5, I've had very frequent crashes ("Fusion 2.5 has stopped working") while typing in the Expression Editor. I can't really pin down a specific situation where it happens, but it seems to happen most often after just having typed an Expression(", as if it's getting ready to search for the name of an object.
Has anyone else been having problems with this? I wouldn't discount something to do with my netbook.