I recently submitted my first cartoon as the end result to my first experiences with Flash, and the only thing I really intended to do with it was sync audio just a little bit. When I previewed the movie on my computer, it was synced very well, but, while previewing it online, my animation lagged way behind my audio clip by the end of the movie.
Is there any trick (such as using a specific file type, putting sound in any sort of layer, etc.) to audio syncing for the purpose of making any sort of "music video?" Let me know what you can, and I can answer any questions about my situation if anyone has them!