I have a Swiffy ad unit that is essentially showing duplicated (stacked) and is bleeding into a module beneath it. As you scroll past it, the duplicated version goes away. Attached is a screenshot and the Swiffy ad code. Any idea what I can do to the code to prevent this?
<style>html, body {width: 100%; height: 100%}</style>
</head>
<body style="margin: 0; overflow: auto">
<div id="swiffycontainer_%ecid!" style="width: 300px; height: 250px">
</div>
<script>
var stage = new swiffy.Stage(document.getElementById('swiffycontainer_%ecid!'),
swiffyobject, {});
stage.setFlashVars("clickTag=%%CLICK_URL_ESC%%%%DEST_URL%%");
stage.start();
</script>
</body>
Results in:

I think you should use iframe to contain that swiffy thing