I'm having a couple of issues since installing Lion:

-BIAB almost always crashes when I quit. I've already sent in a crash log to support@pgmusic.com.

-When I export individual tracks by dragging them to the desktop, I no longer get an actual midi file, but an alias that points to a midi file in the /Applications/Band-in-a-Box/DragDrop/ folder. This isn't a crippling problem, but it is a little inconvenient.