title: 100% to 100% Flex application preloader positioning
body: <p>I've got a problem trying to apply a loading animation to my Flex application - a whole browser window occupant.
  I'm subclassing DownloadProgressBar class as described on Adobe's <a href="http://livedocs.adobe.com/flex/3/html/help.html?content=app_container_4.html" rel="nofollow noreferrer">article</a> about this. <code>stageHeight</code> and <code>stageWidth</code>, reported by base class are incorrect. It says 500x375 pixels in constructor and 0x0 elsewhere. Why?</p>