OK, I think I've determined that it's probably an audio driver problem, but the problem is still not solved. I'm also a little miffed at pg support for having me do a complete reinstall. I have a feeling that the previous install was probably 'OK' and that adjusting the drivers may have solved the previous issues, despite the fact that the HD version of BIAB 'worked'.

Anyway here's what I've figured out.

Both ASIO drivers and MME drivers work fine in BIAB if Sonar isn't running. If Sonar is running (w/ ASIO drivers), BIAB works w/ MME drivers but not w/ ASIO drivers. Also, If both are set to ASIO drivers, Sonar has problems too. So basically the 2 can't share ASIO drivers. So I'm gonna run BIAB in strictly MME for the time being and Sonar in ASIO and we'll see if problems arise. At one point I got a message "Access violation at address...." in BIAB.

I'm clueless about driver interaction between programs so if anyone has a suggestion about how to use the 2 programs w/o problems simultaneously, that'd be helpful.

Peace,

Ian