Combobox componnt stops working in submovie

I have four comboboxes with four xml connectors, loading into a dropzone mc. The problem is that they work fine when I publish them in the test environment (ctrl-f12) but when they are loaded into the main movie they stop working, a path problem you may think, however the combos are just sat in the main timeline of the submovie, with


as the actionscript to trigger the xml connnectors so i don’t see how that can be the problem. Has anyone else encountered something similar?