I've just had to re-install Biab on my new computer (old one motherboard failure) and I have Biab 2004 (yes I know, so I've ordered 2010). All the other tracks work fine, but the drum track is defaulting to the acoustic piano. I think I ran into this in 2004, but I forgot how to fix it. I am using external Yamaha Motif for synth, all tracks work fine, but no drums!