Table extends beyond Screen in IE (OK in Chrome and Firefox)

Notace

I have a datatable which looks fine in Chrome and Firefox. However, in IE the table "falls off" the right hand side of the screen, so a couple of the columns and the scroll bar is not visible. Here is my thead markup



Stock Products


Model
Item
Machine Description
Engine HP
Trans.
Base DNP


And I initialise the widget with:
jQuery(document).ready(function() {
oTable = jQuery('#stock').dataTable( { // Initialise the Product Table
"sScrollY": "250px", // Set scrollable area to 300 pixels
"bScrollCollapse": true, // Shrink the table if only a few rows displayed
"bPaginate": false, // Turn off pagination furniture (turning it on breaks Scrolling)
"bAutoWidth": true, // Let Datatable manage the column widths
"bSort": true, // Turn on Sorting for all columna
"bInfo": false, // Turn off "Showing x to y of nn entries" element
"aaSorting": [[ 0, "asc" ]], // By default, sort by Quote No.
"oLanguage": {"sSearch": "Search:"} // Change the filter box text
} );

Any thoughts as to why IE is not playing nice? Is there something else I could provide to help?

Thanks
Ron