PHP & 406 Not Acceptable

[merianos]

Hello all ! ! !

I have a litle problem with a script that I have create.

This script selecting from the database all the records (in total 2) and then print out a XML file.

I have enter this code to change the header to XML :

header('Content-type: application/xml; charset="utf-8"');

and then i print out hte records of the MySQL query :

echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";

echo "<languages>";

while($rows = @mysql_fetch_array($resLNGS, MYSQL_ASSOC))
{

echo "<lngs>";

if((isset($_POST['lngs_id']) && strlen($_POST['lngs_id'])>0) && ($_POST['lngs_id'] == $rows['ID']))
{
echo "<id default=\"" . $rows['ID'] . "\">" . $rows['ID'] . "</id>";
}
else
{
echo "<id>" . $rows['ID'] . "</id>";
}
echo "<name>" . $rows['NAME'] . "</name>";

echo "</lngs>";

}

echo "</languages>";

That's all my code and then I'm getting from the server the following headers :

http://xx.x.xxx.xx/~babis08/CPanel/xml/languages.php

POST /~babis08/CPanel/xml/languages.php HTTP/1.1
Host: 62.1.216.81
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; el; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5 FirePHP/0.2.1
Accept: application/xml, text/xml, */*
Accept-Language: el
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-7,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
X-Requested-With: XMLHttpRequest
Referer: [url]http://xx.x.xxx.xx/~babis08/CPanel/prop[/url] ... insert.php
Cookie: PHPSESSID=4181110c8e9c2f68d7f758030aa2bbe4
Pragma: no-cache
Cache-Control: no-cache

HTTP/1.x 406 Not Acceptable
Date: Sat, 03 Jan 2009 08:22:17 GMT
Server: Apache/2.2.10 (Unix) mod_ssl/2.2.10 OpenSSL/0.9.8b mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 mod_perl/2.0.4 Perl/v5.8.8
Content-Length: 599
Keep-Alive: timeout=5, max=63
Connection: Keep-Alive
Content-Type: text/html; charset=iso-8859-1

What can i do for ? ? ?

thanks a lot