Fail to Load in Server-Side Datatable Processing

Hi.
I wanna use server-side processing datatables, so I followed the tutorial below
http://datatables.net/release-datatables/examples/data_sources/server_side.html

and initiated my table like this

$(document).ready(function() {
$('#tbldashboard').dataTable( {
"bProcessing": true,
"bServerSide": true,
"bDestroy": true,
"sAjaxSource": "dashboard_processing.php"

} );

} );

the problem is:
1. Once I use "bDestroy": true, css in my table, the table ruined and the search function doesn't work properly
2. If I don't use "bDestroy": true statement, the data won't appear in my table. The samething happens if I replace "bDestroy": true with "bRetrieve": true

Is there anyway so I can use server side processing that works? or please let me know where i went wrong

Thank you