Thanks, Andrew. That solves a), b) and c), but doesn't deal with the one I knew was going to be difficult, namely d)!

When my colleague and I exchange files, I think we should put the newly received songs into a probationary directory and run the song picker over them by clicking "Rebuild List" to ensure that all the RealTracks etc are available. We're then less likely to get caught out on a gig when we've rehearsed a song with one computer, and are playing it back on a gig on another one.

Foxy