Hey Manning,
I really don't want to get into a Mac vs PC debate. So to cut to the chase>
I've been using midi and audio programs on the PC, Mac and Atari since 1990.
I had the first version of BIAB on floppies for Atari. I've upgraded every year.
I spend an equal amount of time on Mac and PC everyday for different reasons.
Core midi and Audio on the Mac is a Godsend, things work, there is no need to waste time tweeking, results are fast, easy and professional.
Even using the new Windows 7 on the PC, I have all kinds of issues and have to waste time either changing settings, or using system restore to go back to an earlier time when things did work. I still can't get BIAB to play a midi keyboard part, I either check "ASIO always on" and then hear nothing except when playing back, or it will play but with Latency. Crashes and hangs are still there.
I should also mention that I use Reason, Finale, Sonar, Sibelius without any driver or sound problems on the PC. So why do I have so many issues with Band in a Box?
Bottom line, if more than 1 person is having issues and they have followed all the guidelines in terms of setup, there is a problem! It may be the interface, the OS, Band in a Box, or some other variable. Check the forums here and you will see a lot of people having sound related issues with BIAB. And, in my opinion, there are far fewer people having issues with the Mac version than PC, again, check the forums.
Ed