text: Try giving the clip an id.  In the onClipEvent check to see if the contents of the ID exist, if they do, then don't load, but if it doesn't then don't load.... basically, use JavaScript and the Document Object Model to determine state of the object, and only load if the object doesn't yet exist.\n\nI hope that helps and makes sense.  If it's not clear enough, let me know and I'll elaborate.