Error #2044: Unhandled IOErrorEvent:. text=Error #2035: URL Not Found.

Hello,

I have just recently started using the Flash platform and working with ActionScript. I have started a small project and attempting to load a PNG file onto the stage. I have an image directory within the project folder and have the following code which is generating the error.

package

{

    import flash.display.Loader;

    import flash.display.Sprite;

    import flash.events.MouseEvent;

    import flash.net.URLRequest;

    [SWF(width="550", height="400", backgroundColor="#FFFFFF", frameRate="60")]

    public class Kitties extends Sprite

    {

        //Declare the variables for the background.

        public var backgroundURL: URLRequest;

        public var backgroundLoader: Loader;

        public var background: Sprite;

        public function Kitties()

        {

            backgroundURL = new URLRequest();

            backgroundLoader = new Loader();

            background = new Sprite();

            backgroundURL.url = "..\images\background.png";

            backgroundLoader.load(backgroundURL);

            background.addChild(backgroundLoader);

            stage.addChild(background);

        }

    }

}

Unfortunately I was unable to locate a code block to contain this and there is no syntax highlighting for ActionScript within the forum?

Thanks.