Accordian UI has unpleasent header jump in IE and Safari browsers

Accordian UI has unpleasent header jump in IE and Safari browsers

I have been trying for days to find a solution to accordian UI headers jumping a few pixels upon animated collapse and expand in IE.  Even on this webpage's demo this happens in IE6, IE8, and Safari but is fine in FF (those are the browsers I tested).  I have to support IE6 in particular for a project I am working on.  Has anyone found a solution to this?  I used the theme roller and downloaded the code but the accordian UI jumping is really annoying.  I am fairly new to jQuery but since it happens even on this site I am guessing this is a problem with the newest framework that we will have to live with????  I have tried it with browsers on Windows XP and Vista.
 
Any advise is welcome.