I've had the access violation thing too, with all software being current. It seems to happen randomly with no rhyme or reason. Only last night I was thinking the same thing- I had a great session with the software but frequently upon closing and/or saving before closing, things go nuts and make you spend a whole bunch of extra time dealing with it. I had one song just hang upon my last save before closing, to which I used the task manager to clear it. The project re-opened up, but there was a kind of phantom RT piano behind the original and the project became unusable no matter what I tried. I have noticed biab is more grouchy when closing out since this latest update, for me. I don't remember having these issues when working for the short time I did in the original 2010 version. Actually, my biab version is build 303.

Dan

My YT Channel- http://www.youtube.com/user/dfizzbom