component, combobox in movie clip breaks

[fitchic77]

Flash MX 2004

this works fine on root...
on (change)
{
comp = _root.myComboBox.getSelectedItem().data;
trace("comp" +comp +_target);
}

breaks in movie clip:
on (change)
{
comp = this.myComboBox.getSelectedItem().data;
trace("comp" +comp +_target); //returns instance6??
}

any ideas???
fitchic77@yahoo.com :rolleyes: