ftp_put() upload from local file D: ?

I'm trying to upload a file on my local
computer to the server.

i know the script is allright, i also
tried to rename files and that worked

but i can't upload a file from my local harddisk d: to the server

here's the script i use :
<?

$server = '*******'; //changed for this example
$user = '*****'; //changed for this example
$pass = '******'; //changed for this example

$source_file = 'd:background.gif';
$destination_file = '/opt/guide/www.mydomain.nl/HTML/images/testbackground.gif';

$ftp_connect = ftp_connect ($server)
or die ("Could not connect to $server");

$ftp = ftp_login ($ftp_connect, $user, $pass)
or die ("Authentication failed");

$result=ftp_put ($ftp, "$destination_file", $source_file, FTP_BINARY);

if ($result)
print "file uploaded";
else
print "Not uploaded";

ftp_quit ($ftp);

?>

i keep getting the error message :
Warning: error opening d:background.gif in /opt/guide/www.egifts.nl/HTML/testrename.php3 on line 20


What am i doing wrong ????

Thanks for your help !

Jan, The Netherlands.

Pretty old message. But I miss the answer - since I have the same problem. Although my local file path is "c:/test.txt". The same error message. I tried "c://test.txt" and also "c:\test.txt", but with no effect.
Thanks for advice.