wow... check this wierd bug. YouTube Video will autoplay, then two seconds later I can hear the audio start again in the background. Pausing the player only stops one instance of the video/audio. It's only on Internet Explorer. No probelms with Firefox.
Here it is:
http://www.dorchadashla.org/bina/talk/stalking-caring

The way the video is implemented:
I have a cck field with Embedded Media Field (emfield). the editor paste a youTube URL.
The page is themed as node-content_type_name.tpl.php, where I print the code with:

<!--field_bina_speaker_video -->
<?php if ($node->field_bina_speaker_video[0]['view']): ?>      
<div id="bina-event-youtube">
<?php print $node->field_bina_speaker_video[0]['view']?>    
</div>
<?php endif; ?>

Someone had it happen to him, but there are no comments.
http://drupal.org/node/835182

help! thank you!
Leo