vil ikke udskrive

Jeg har noget kode der skal udskrive nogle poster, men det gør den ikke ?????

Nogen der kan se fejlen ....



<?
ob_start();

session_start();
$userid = $_SESSION['valid_user'];
//echo $userid;
//exit;
if (empty($HTTP_SESSION_VARS['valid_user']))
{
    header("Location: http://127.0.0.1/til/login1_retmedl.php"); 
}
require ("sidehoved.html");
?>
<html>
<center>
<table border="0" cellspacing="0" cellpadding="30" width="100%">

<tr>
 
      <td style="border-right: 1px solid black"><nobr><h3>r</nobr></td>

      <td rowspan="5" class ="td1" style="border-right: 1px solid black"><nobr><h5><center><b>Her kan du slette </nobr></b></center></h5>   
     

<form name=bm_table action="http://127.0.0.1/til/opdater_sletmedl.php" method=post>
<?php


$conn = mysql_connect("localhost","root") or die(mysql_error());
mysql_select_db("til") or die(mysql_error());

$query = mysql_query("SELECT * FROM medlem where brugernavn = '$userid'") or die(mysql_error());
while ($row = mysql_fetch_array($query)) {
?>
           
<br><br>
<table class='tekstafsnit' width='100%' border='0' cellspacing='0' cellpadding='0'>
   
    <tr> 
          <td><? echo "Fornavn: $row[fornavn]"; ?></td>
    </tr>

<tr> 
        <td><? echo "farve: $row[farve]"; ?></td>
    </tr>
<?
<tr>
<td><center><input type='checkbox' name='slet_medl[]' value= '$userid' ></center></td>
</tr>


</table>
</center>

<br><br>
 
";
}
?>
<br><br>
<input type="Submit" name="submit" value="Marker i boksen, hvis du stadig vil slette ">
</td>

<td><nobr><h3>r</nobr></td>
</tr>


<tr>
      <td style="border-right: 1px solid black"><nobr><h3>r</nobr></td>
      <td ><nobr><h3>r</nobr></td>
</tr>

<tr>
      <td style="border-right: 1px solid black"><nobr><h3>r</nobr></td>
      <td ><nobr><h3>r</nobr></td>
</tr>

<tr>
      <td style="border-right: 1px solid black"><nobr><h3>r</nobr></td>
      <td ><nobr><h3>r</nobr></td>
</tr>

<tr>
      <td style="border-right: 1px solid black"><nobr><h3>r</nobr></td>
      <td ><nobr><h3>r</nobr></td>
</tr>


</table>
</center>
</form>

     
</html>

<?
require ("sidefod.html");
ob_end_flush();
?>