In response to the thread "How can I tell which RealTrack sets have been installed?", I was advised to try using the Juke Box feature as a way of checking quickly that a colleague's laptop can play songs which have been arranged on my PC, which has a number of RealTracks the laptop doesn't have space for.

I chose a folder with 182 songs in it, several of which I've been working on to add instruments and styles from RealTracks, and then started the Juke Box.

The "Options for JukeBox" which I ticked in the dialog box were:

Change Melody Instrument
Auto-Choose Soloists
Change Soloist Instrument w/each chorus
(Preview) Switch to next song after 1 bar

and then I clicked "PLAY JUKE BOX".

The first seven songs were loaded, generated and played (one bar only), but the eighth was loaded by BIAB but never played.

When I eventually clicked the "X" to close BIAB, I got a message to say the program was no longer responding.

I tried the same sequence on my laptop, and on this occasion the eighth song was loaded and played before BIAB became unresponsive.

The failure of BIAB seems to have had side-effects elsewhere, in that an Open Office document opened subsequently was displayed incorrectly (lower case "s" was replaced by a newline), and when I plugged in my iPod I was told that iTunes was missing essential files and that I'd need to reinstall.

The first of these problems was solved by a reboot, but I had to reinstall iTunes to get it to work.

Each one of these songs can be played by BIAB normally without trouble, which suggests it's not a corrupt file problem.