John, I am probably confusing the matter, as I am still totally confused and overwhelmed by BIAB and Realband anyway. I managed to evoke an access violation after copying and pasting parts of the song in the chords view. Unfortunately my C drive became full during this exercise and I made the mistake of clicking the windows " get rid of unused files" button. That also removed the undo files for Realband, and when I tried to save, all crashed. As if that was not enough, it screwed up my disc access, so I couldn't address my drive anymore. Luckily I have a copy on another drive, which I copied across. At about 160Gigs it took some time. After I had recovered my drive, I decided to add some partitions to my backup drive so that if something like that happened again, I wouldn't lose everything on the drive. Well it must have been my lucky day, because I managed to screw that up as well somehow, and lost my backup drive.
Luckily I had copied all the files to the other drive, so I haven't lost any data. Anyway I now have more partitions and my data is back on my backup drive so I'll see if I can do it again. In the video it all looked so damned easy BTW I'm using Realband 2010 build 4.
I'll get back to you..

Chris