Simple referencing problem

Having a problem getting data to display in my dynamic text fields. have a movieclip and onRollOver it laods a movie clip to the stage which has the dynamic text fields in it. but at the moment it just displays: _level0.popout1.add1 However if i put the movieclip on the stage and give it the same instance name (“popout”) it then displays the values and not the above. At the moment it has been assigned an identifier of “popout” in the library. Can anyone explain why?