Cell width changed after calling fnAddData

oshabani

Hello ,
I have this DataTable Aboject :
[code]
$('#tbl').dataTable({
"sDom": 'T<"clear">lfrtip',
"aoColumns": [
{ "sWidth": "1px" }, { "sWidth": "150px" }, { "sWidth": "150px" }, { "sWidth": "150px" }, { "sWidth": "150px" }

],

"oTableTools": {
"aButtons": [],
"sRowSelect": "single"
},
"oLanguage": {
"sEmptyTable": "No Records",
"oPaginate": { "sPrevious": "@_Layout.Prev ", "sNext": "@_Layout.Next" }
},
"bLengthChange": false,
"bFilter": false,
"bSort": false,
"bInfo": false,
"bAutoWidth":false
});
[/code]

now the table is empty and all cell width is looks as i want , when i try to add a new record using the fnAddData all width of the cells take the same width , how could i fix the width of these new record cells

thank you