prob with include file

Hi! same is working on windows but on Lynux giving the following problem.. Warning: Failed opening 'admin.php' for inclusion (include_path='/www/inc') in /www/imac/authentication.php on line 46 ---------------------------------------------- if ($row->user_type=='A') { file://close mysql connection mysql_close($connection); include('admin.php'); exit; } else if ($row->user_type=='S') { file://close mysql connection mysql_close($connection); include('super.php'); exit; } else if ($row->user_type=='O') { file://close mysql connection mysql_close($connection); include('ordinary.php'); exit; } ----------------------------------------- And i tried this also include('./admin.php'); ------------------------------ Thanks in advance Regards -Balaji

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