Header with search field wraps to a new line

I am not sure how to configure the header part of the table where the search field appears. It wraps onto a new line. Here is a screenshot of the table showing what is wrong: http://postimage.org/image/7bl0do6zt/

I have defined my table as:

 <table cellpadding="0" cellspacing="0" border="0" class="display" id="HighJobs">
                <thead>
                    <tr> ... </tr>
                </thead>
                <tfoot> .... </tfoot>
</table>

and here is a glimpse of my table in javascript:

hJobTable = $('#HighJobs').dataTable( {
			"sScrollY": 400,
			"iDisplayLength": 50,
			"bFilter": true,
			"bJQueryUI": true,
			"bProcessing": true,
			"sPaginationType": "full_numbers",
			"bServerSide": false,				
			"aaSorting": [[ 5, "asc" ]],			
			"sAjaxSource": "somefunction.php?processID=2",
			"asStripClasses":[]
} );