I had a few problems after the first install with my update from 6.5 to 7; it crashed while working with older songs and working in the mixer area. Don’t know what went wrong or what I did wrong, but decided to uninstall it and install it again. Now it works fine and I can do everything without crashing 
Well… just as soon as I posted my xperience with Cubase re-install and how great life was for me, Cubase crashed again. Mmmm, stupid software; just wait for the updates then. 