Hi Bob

I'm just using the normal Windows one (GS wavetable synth). I've never had to worry about the MIDI settings before on BiaB - they've always been fine until BiaB 2021. Now I had the strange reverb problem with build 814, and no reverb at all with build 818. The only thing that has changed is my version of BiaB so it does seem that the problem lies there rather than anywhere else.