Silvertones:

I think the RB partial track regeneration problem I'm having may have to do with the file I've been using. The file in question was a BIAB file from Feb of 2009 that I opened in RB and then saved as a .SEQ file

I created a new song in RB, generated it, and was able to select a few measures and get them to regenerate.

(by the way, my RT track names always appear in BLUE and when I right click on the track the menu item I click on lists the name of the BB track and also has "(selected region)"
listed. I don't know why this is different than what you are seeing.)

I also tried creating a new song in BIAB and opened it RB and I was able get part of those tracks to regenerate.

So, like I said, It may have to do with the particular file, or maybe that it was created in an earlier version of BIAB, but new songs created in BIAB and RB will do a partial regenerate for me.

Thanks to everyone for responding.

John