Animating Dynamic Text Boxes

Hello, I need help with Animating Dynamic Text Boxes. I create a text box with the variable “title”. I then convert the dynamic test box into a movie Clip. So i got a dynamic text box in a movie clip. but here is my problem…with the movie clip. i try to Fade it in, from Alpha 0% with a motion tween. but when i test the movie, the text doesn’t fade at all, it just appears there.

anyone help?

i wanna be able to manipulate dynamic text boxes just as easliy as movie clips or graphics.