I tried increasing the buffer and that did improve on the problem, though not 100%. I tried adjusting the timing offset, (about 1280ms) and although they start off at about the same time, they (midi and audio) don't seem to stay in sync with each other. The audio seems to stumble on whatever and then timing is off.

BTW, let me reiterate that this is BIAB2009 for Windows, not Mac. I originally posted this to the Windows forum but it was moved to the Mac forum. Probably makes sense, since no Windows user would run BIAB in a VMWare session... just wanted to make sure you know which we're talking about.