ROLL_OVER Issue

Hi All,

I have a bit of an issue here. I have a series of movie clips, wen you rollover one a little thumbnail pops up, when you click the thumbnail, it takes you to a specified URL. This is all working perfectly. My issue is, when I roll off of the thumbnail, back onto the logo, the image reloads itself, which makes a tiny flicker (annoying). Anyone know how I can get away from that annoying flicker? Code snippet below:


private function loadImgOver():void {
			
			for(var i:int = 0; i < image_holder.numChildren; i++) {
				
				var img = image_holder.getChildAt(0);
				image_holder.removeChild(img);
			}
			
			loader = new Loader();
			thumbReq = new URLRequest(thumbUrl);
			loader.load(thumbReq);
			loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadThumb);
			loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, errorLoadingThumb);
		}