note 48122 added to function.header

Hello , I have used part of the code here to write a download script. So far, I get a download dialog which saves the pdf docs. On trying to open the pdf docs, I get the following error: "There was an error opening this document.File does not begin with '%pdf-'. I guess some how the file does not download properly. Pls. help Here is the code <?php $file = '/fos/cwiq/CWIQ2003/test.pdf'; header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Content-Length: '.filesize($file)); header('Content-type: application/octet-stream'); header('Content-Disposition: attachment; filename='.basename($file)); readfile($file); ?> Running IIS, windows 2000 sp4, firefox 1.0, IE 6 sp2. ---- Manual Page -- http://www.php.net/manual/en/function.header.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+48122 Delete -- http://master.php.net/manage/user-notes.php?action=delete+48122&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+48122&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+48122&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+48122&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+48122&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+48122&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+48122&report=yes Search -- http://master.php.net/manage/user-notes.php