IE Problem

I dont know if here is the right place to ask about this. I'm using
eyecon interface plugin for jquery. I'm trying to drag a table row,
and drop it to another table. It works fine with firefox. but when i
use IE7, the row just disappears when drag starts. When it is droped
to some place in the page, a div appears in that place that contains
the dragged row... Can anyone help??