Empty movie clips within other empty movie clips

i’m building a site where i load external swfs within empty movie clips - pretty standard. the problem i’m having is that within these external swfs are additional empty movie clips that load external swfs. these ones are coded the same in as the ones in the main menu document, which works fine by the way, and they work on there own, but when they’re in the main menu, they don’t work anymore. the buttons come up, but none of the content loads in the empty movie clip the way that i need it to. anybody have any suggestions? i appreciate it in advance.