CGI fejl.

Får denne fejl:
CGI Error
The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are:


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Content-disposition: filename=GIF89a

Ved denne kode:
<?
$hostname = "localhost";
$username = "******";
$password = "*************";
$database = "*****";

$db = mysql_connect("$hostname", "$username", "$password");
mysql_select_db("$database", $db);
$id = $_REQUEST['id'];
if ( $id ) {
    $sql = mysql_query("SELECT * FROM test WHERE id=$id");
    $row = mysql_fetch_array($sql);
   
    if ( $row ) {
        $filename = $row["picture"];
        $type = $row["type"];
        $data = $row["picture"]; //felt med binære data
        Header ("Content-disposition: filename=".$filename);
        Header ("Content-type: $type");
        echo $data;
        exit ();
    }   
}
?>


Det er virket perfekt får, men nu virker det ikke.
Hvad er der galt?