BlackBerry Forums Support Community - Popup Screen from background thread (without white background)

Hi,

I need information how to create Popup Screen from background thread.
I already try to create it, but I always get white background behind
my Popup Screen.
what should i do to create Popup Screen with transparent background,
so the Popup Screen will use Home Screen as Background?

Code:

    private class BackGroundApp extends Thread {

        public void run() {

            System.out.println("Application is running");

            try {

                sleep(5000);

            }

            catch (Exception e){}

            UiApplication.getUiApplication().invokeLater(new Runnable() {

                public void run() {        

                    Screen screen = new PopupScreen1();

                    UiApplication.getUiApplication().pushScreen(screen);

                }

            });

        }

    }

i attach a capture screen of my simulator that show a white background.

thanks.