I have a 1920X1080 MPG video that I converted to a F4V then loaded it into Flash CS4 (F4V as an external file on my server) and scaled to fit my document (864X486). I used a skin that included a fullscreen button.
Now that I have the video on my site it plays fine, but when you click on the fullscreen button there's a problem. The SWF does go fullscreen, but the video is small in the upper left hand corner.
Here it is (temporarily):
What have I overlooked?
I figured it out.
The F4V file MUST be the same size (width and height) as the FLA (and SWF) document you place it in or it will scale the video by the same proportion you scale in the FLA (and SWF) when you go to fullscreen.