PHP3, mySQL, Apache -- Redirect

I have a php3 script that displays messages, and one that posts. After posting, I want to redirect back to the display ... or even just have a button to go back to the display. My problem is that when I go back (either redirected or user-directed), the display.php3 doesn't get the latest query from mySQL database. Any ideas where I'm going wrong? Here is the display.php3 stuff:

<?
mysql_connect("localhost", "webuser", "");
$query = "Select mindex, mthread, msubject, mname, mip, mtime, mdate from messagedb";
$result = mysql_db_query("messagedb", $query);

if ($result) {
while ($r = mysql_fetch_array($result)) {
$index = $r["mindex"];
$thread = $r["mthread"];
$subject = $r["msubject"];
$name = $r["mname"];
$ip = $r["mip"];
$time = $r["mtime"];
$date = $r["mdate"];
echo "$subject<br></A>";
echo "$name<br>";
echo "$date<br>";
echo "$time<br>";
}
}
else { echo "NO DATA"; }

mysql_free_result($result);
?>

Remember, the net is stateless. You either have to query again or pass the query results.

Your browser is caching the previous output of the display.php3 script. You could combine both the display and the post scripts into one, and eliminate the caching issue and the redirect code...

Also - think about using some passwords on your database!