I have been working with tech support for several weeks on this problem and they cannot solve it. PLEASE if anyone has any ideas, I need them desperately.

Here is the problem.
With the option "pause until midi received" selected, the first note, and only the first note, of a song sounds as soon as I start the song. The song then stops and restarts at the second note when I send a midi signal from my keyboard or press spacebar.
The problem only occurs 20% of the time and seems random - not song specific.
It only happens with songs containing at least one midi instrument, not with all RTs.
It doesn't matter how I start the song, even using the Jukebox to start songs has the same problem.
It doesn't matter which spacebar option is selected.
It doesn't matter whether I use a soft synth or my sound module.
I am using BIAB 2013 but is was happening with 2012 and 2012.5.
Finally, and this really gets me, it happened with 2013 installed on two different laptops both running Win7.

It seems like a signal is getting passed the "pause" option when I press play but if so, why does only the first note play?

You can see why I have run out of ideas.

Thanks
Tony