Luke! So that you keep learning...
You don't load on layers, you load on levels!
When you load a movie on level 2, for instance, and there's already a movie loaded on level 2, the new movie will replace the first one... No need to unload the old movie in that situation. If you want to clear all previously loaded movies on all levels, just load your new movie in level 0.
Re-loading your original main movie on level 0, would thus clear all the other movies loaded from that original movie's first pass!
;-)ldnewbie