Load swf works in Publish Preview but not when published

Question

Hi Folks,
I having a problem where im trying to load two 1mb SWF movies into my Flash piece. It works fine in Publish Preview but not when I finally publish. I get this error in IE:
SecurityError: Error #2000: No active security context.
I have googled around and there is some talk online of a hack where by you get a timeout to overcome this. However im not so technical do I dont really know how to do this to my code in AS3. My code at the moment is below.
Any help would be much appreciated and rewarded with Karma
movieClip_12.addEventListener(MouseEvent.CLICK, fl_ClickToLoadUnloadSWF_9);
var fl_Loader_9:Loader;
//This variable keeps track of whether you want to load or unload the SWF
var fl_ToLoad_9:Boolean = true;
function fl_ClickToLoadUnloadSWF_9(event:MouseEvent):void
if(fl_ToLoad_9)
  fl_Loader_9 = new Loader();
  fl_Loader_9.load(new URLRequest("search.swf"));
  addChild(fl_Loader_9);
else
  fl_Loader_9.unload();
  removeChild(fl_Loader_9);
  fl_Loader_9 = null;
// Toggle whether you want to load or unload the SWF
fl_ToLoad_9 = !fl_ToLoad_9;
movieClip_14.addEventListener(MouseEvent.CLICK, fl_ClickToLoadUnloadSWF_10);
var fl_Loader_10:Loader;
//This variable keeps track of whether you want to load or unload the SWF
var fl_ToLoad_10:Boolean = true;
function fl_ClickToLoadUnloadSWF_10(event:MouseEvent):void
if(fl_ToLoad_10)
  fl_Loader_10 = new Loader();
fl_Loader_10.load(new URLRequest("refunds.swf"));
  addChild(fl_Loader_10);
else
  fl_Loader_10.unload();
  removeChild(fl_Loader_10);
  fl_Loader_10 = null;
// Toggle whether you want to load or unload the SWF
fl_ToLoad_10 = !fl_ToLoad_10;

Answer 1

I think this is either a problem with my site preLoader or my external .swf Loader. I was checking out the bandwith profiler and saw something weird and I wondered if anyone could explain...I've added a picture. I have a blank frame on only my actions layer to export classes to and it seems that frame 2 is "bleeding" into frame 1. Could this be my problem? Why would this happen? Thanks