I am having an issue with a combobox.

Everything seems to work fine until I click on the "home" link. Then the box duplicates the items in the list.

I tried to write a function that would add the items on the initial load thinking the addItem code was running again when it enters frame1. Maybe I am still doing it wrong.

Here is the code:
Code:
stop();

import fl.data.DataProvider;
import fl.events.ComponentEvent;
import flash.events.Event;

var listBuilt:Boolean = false;

stage.addEventListener(Event.ENTER_FRAME, buildList);

function buildList (evt:Event): void {
	if (listBuilt == false) {
		// Add Item to List.
		my_cb.addItem({data:1, label:"Home"});
		my_cb.addItem({data:2, label:"First Link"});
		my_cb.addItem({data:3, label:"Second Link"});
		listBuilt = true;
	} else {
		//do nothing
	}
}

// Add Listener.
my_cb.addEventListener (Event.CHANGE, getData);

function getData(evt:Event): void {
	gotoAndPlay(evt.currentTarget.selectedItem.data);
}