Problem on tutorial:Animating Dynamic MovieClips

anyone follow the tutorial:Animating Dynamic MovieClips?
i follow. and it works fine and perfectly.

but i have one problem, that is, if i replace the blue circle with an text and set it to movie clip. well, it works/preview fine as in the flash editor.

but if i open directly on the swf i have created, it just a blank scene, which i see no effect at all.

i think there might be some setting need to be ajusted…
can anyone tell me what is going on?
anyone faces the same thing before?
thanks…
and thanks for kirupa to offer such great tutorials!:te: