G'day Dave,
ahh, I don't recall you mentioning the ASIO driver - that'll be where the MIDI Mapper conflict was coming from. I bet something was opening it as an input(?) device and seizing the wav output as a result. I had similar problems with ASIO4ALL when I was preparing this: http://nwc-scriptorium.org/helpful/vstfdum.pdf I found I needed to be fairly careful with the VSTHOST configuration

Personally, I've found BIAB to be good with ASIO provided the ASIO driver was stable. Please note, you'll have trouble running both BIAB and RB at the same time with ASIO selected. To quote Mac: "ASIO is a one man dawg"

BTW, I'm on the East coast actually mate, several hours in front. NSW Central Coast to be a little more accurate...

--=-- My credo: If it's worth doing, it's worth overdoing - just ask my missus, she'll tell ya laugh --=--
You're only paranoid if you're wrong!