navigateToURL not working in IE7

programming flash
1

I have a series of buttons that I want to act as links. In firefox and safari, the links work fine, but in IE, it reacts as if I hit the reload button…This is the code I am using:


private function launchCourse(event:MouseEvent):void
{
	navigateToURL(new URLRequest(String(courseInfo[event.currentTarget.id].courseURL)),"_self");
}

any ideas??

I am using ExternalInterface.call right now and using javascript to change pages right now which is working, but I do not want to rely on javascript…