One thing to be careful of is that your songs that you are sharing between the Windows version and the Mac version uses RealTracks that both computers have installed. For example, the Band-in-a-Box UltraPAK includes all of the RealTrack Sets for its particular version/year and the Pro PAK is the smallest PAK with a limited number of RealTracks. If your Windows is an UltraPAK and you made a song with it, then open that song in a Pro PAK for Mac, it is possible to accidentally use RealTracks from the Windows UltraPAK that are not included in the Mac Pro. Thus the RealTracks would then show as N/A and not play.


Best,
Chantelle