Hi Tom,
I'm heading off now. I'll come back to your post in the morning.
In the meantime, if you have a look through this thread (
here's the link), and scroll about 1/3 of the way down, you'll see where I talk about checking the default directory for Sampletank, midi channels and assigning instruments to the midi various midi channels.
This should help give a little more insight.
Also, if the standalone version is running when you try to run the VST/DXi in BIAB, that might cause some interference, too.
Kind regards,
Noel