Emergency PROBLEM! FULL SCREEN FLASH

Hello to everybody. I have a very big problem, that must be urgently solved. I need to make a full screen flash movie. I need this because i need to change the background color when i click a specific button.

I read the article about full screen in flash, but it not works perfectly
http://www.kirupa.com/developer/mx2004/fullscreen.htm

I can not see the whole movie horizontaly is OK, but vertycaly i see just a part of it. Could someone send me the code or help me in one way or another.

Thank you very much for your precious help!

Best regards, Jernej