If you set the width/height to be 100% in the EMBED/OBJECT tags than it will stretch out the SWF to the size of the browser window. When I look at your site on my screen, the background image of the girl is a pixelated blurry mess because it's being stretched to fit my resolution. Rather, you should make everything a fixed size. and put vector elements because vector elements can be stretched w/o loss. Also, if your bitmap text is being stretched that is also because of the resolution. There is nothing you can do about that. Vector text however should be not be stretched.