freeze first frame

[masoal]

Hi all,
I have a MediaPlayer embeded in an HTML page. When I initialize it, I assign a default file but depending on the user choice, it's changed.
The problem is when I dinamically change the URL (file that is playing with a: "Player.URL = newFile;") that the display remains as a black box and it doesn't show the first frame of the film.

I've tried to send a "step()", "pause()" or setting the
"currentPositionTimecode" when the "playState" is at 10 (ready state) but the player remains as a black blox until it's sent a "Player.controls.play()".

How can I show the first frame of the new film?

I'm working with MediaPlayer v10.00.00.3646 and WinXP SP2 with IE6.0.2900.2180 and JavaScript.

Thanks,
Marc