Understood. I don't believe that's the issue in my case since I carefully characterized the bug with various different browsers and different versions of Flash. Also, the same behavior was exhibited on the pages at CDBaby.com which were formatted with completely different HTML than mine.

I think I've managed a good work-around for now, so I'm hoping it's all good. If anyone wants to pound on the page with different browsers and such, it's at http://www.vixyandtony.com/music.html . Thanks!