Hi Noel
Thanks. I just tried this and it doesn't work. The problem is occuring with everything.

It's very odd. After the first run of it, which is fine, when I press play again, most instruments drop out. And instead of the click of 4 drum sticks to start, I get a piano that plays one note...very weird. Because it is so consistent, I feel that it's in a setting somewhere. But even when I return BIAB to factory settings, it seems to persist.

Any other ideas? Could I send you a copy of the file for this tune and see if it happens on your machine?