Linkage Identifier and Embedded Movie Clips

I would appreciate if anyone could help with the problem I am having referencing a linked movieclip.

I have a scroll pane with the instance name menuScroll. The scrollPane loads a linked movie clip called menuDropMC with the same instance name. MenuDropMC also loads several instances of a linked movie clip called moduleNameMC with the same instance name. The moduleNameMC contains a button called moduleBtn. I am trying to disable this button from root.

The moduleNameMCs are generated dynamically and are followed by a number using a for loop.(“moduleNameMC”+i)

e.g. moduleNameMC0, moduleNameMC1, moduleNameMC2, etc.

I have tried the following:

_root.menuScroll.menuDropMC.moduleNameMC0.moduleBt n.enabled = false;
menuScroll.menuDropMC.moduleNameMC0.moduleBtn.enab led = false;
menuDropMC.moduleNameMC0.moduleBtn.enabled = false;
moduleNameMC0.moduleBtn.enabled = false;

Thanks in advance.