Problem with disapearing video stream on replay

1

Hello every one!
I have worked before with playing flv files, and had no problem such that. So here is a code

var loadedVid:Sprite = new Sprite();
var vid:Video;
var nc:NetConnection;
var ns:NetStream; 
	nc = new NetConnection();
	nc.connect(null);
	ns = new NetStream(nc);
	var customClient:Object = new Object(); 
	ns = new NetStream(nc);
	ns.client = customClient;   // i made that option after help at adobe.com . That helps me do not recieve MetaData error.
	vid = new Video();
	vid.attachNetStream(ns);	
	ns.play("video/1.flv");
	ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
	vid.smoothing = true;
	vid.width = 200;
	vid.height = 150;
	ns.seek(1);
	ns.pause();
	loadedVid.addChild(vid);
	addChild(loadedVid);
	playVid.addEventListener(MouseEvent.CLICK, playVideo);


function playVideo(e:MouseEvent):void{
	ns.resume();
	ns.addEventListener(NetStatusEvent.NET_STATUS, checkStreamStatus);
}


function asyncErrorHandler(e:AsyncErrorEvent):void {
	trace ("AsyncErrorEvent");
	ns.removeEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
}
function checkStreamStatus(e:NetStatusEvent):void {
        switch (e.info.code) {
              case "NetStream.Play.Stop":
             ns.seek(0);
	 ns.pause();
              break;
        }
}

So what i revieve - NS is loaded, seeked to second 0 , and paused. After pushing a play button that resuming playing from 0 second. After Video has completed playing i catch that event and setting seek again to 0, and pausing the strem. So the problem is- after making that option seeking and pausing, my stream video blinking? like disapearing for a moment and revieling again with 0 frame image.
That looks so bad, how can i fix it?