Why can't other buttons like save and copy do not work on other datatables? (print button works)

decee

One of my page contains a datatable and all buttons work fine.
But on other pages that contain datatables, buttons doesn't work at all (except for print button).

i inspected the element and it returns 'Failed to load resource: the server responded with a status of 404 (Not Found)'.

here's my code :

$('#list').DataTable( {
"dom": 'T<"clear">lfrtip',
"tableTools": {
"sSwfPath": "../swf/copy_csv_xls_pdf.swf",
"aButtons": [
"copy",
"print",
{
"sExtends": "collection",
"sButtonText": "Save",
"aButtons": [ "csv", "xls", "pdf" ]
}
]
}
});

i thought maybe i initialized the path wrong so, i tried copying the swf folder that contains the swf file on every folder of my project but still doesn't work .

please help ..thank you ..