Why don't any draggable options work? (What have I done wrong?)

Why don't any draggable options work? (What have I done wrong?)

My Jquery code is:

$(document).ready(function() {
$('.dragme').draggable({handle: '.drag_handle'});
});

My layout is:

    <div id="quick_view_container_<%=getCurrentAttribute('item','internalid')%>" class="quick_view_container dragme">
   <div style="position:relative; padding:0;margin:0;">
     <div class="drag_handle">
         <p>x</p>
        </div>
...other content here...
</div>
</div>

The whole div.dragme is draggable. Where do I start looking for my problem? It doesn't appear that any options are working.

Thanks,