This issue has been around since IE 6 and 7 and appears in IE8 and 9. I found a solution in a small script found somewhere on the net. It would seem that IE needs to be told not to display "title" and use of a secondary javascript/Jquery tool tip will display correctly with only one tooltip/title bubble. the code is;

<!--[if IE]><script>for(i =0;i<document.images.length;i++){document.images[i].title='';}</script><![endif]-->

The original code I had found only had for the "alt" to be empty. This did not work as IE still rendered the title two times. I changed "alt" to "title" in this code and bingo. Put this snipet in the botom or top of your page.