Description:
------------
problem is that my session works on one server(apache) with php 5.0.5 and doesn't on the other(apache) with php 5.1.2, i tried to figure out what this problem exatcly is and i beheld that session varriables are not stored

please try to send me some tips

thanks

Reproduce code:
---------------
.
.
.
if (uis('logout'))
    {
      $this->uid   = null;
      $this->uname = null;
      echo $_SESSION['zvara'];
      info('Boli ste odhl?sen?!');
    }

    if (uis('login'))
    {
      // admin login = new user

      $login = sql_esc($_POST["{$this->tag}_login"]);
      $pass1 = sql_esc($_POST["{$this->tag}_pass"]);

      $db->query("SELECT [USER_ID], [PASSWORD], [USER_NAME], [FIRST_NAME], [LAST_NAME] FROM [Users] WHERE [USER_NAME]='{$login}'");

      if (list($id,$pass2,$un,$fn,$ln) = $db->row())
      {
        if ($this->testpass($pass1,$pass2))
        {
          $this->uid   = $id;
          $this->uname = $un;
          /////////////////////
          $_SESSION['zvara']= "stored";
          //echo $_SESSION['zvara'];
          /////////////////////
          info("Vitajte $fn !");
        } else {
          $wp = "Nespr?vne heslo";
          info($wp);
          return $this->error($wp);
        }
      } else {
        $wl = "Nespr?vny login";
        info($wl);
        return $this->error($wl);
      }
    }
.
.
.

Expected result:
----------------
$_SESSION['zvara'] is not stored;
but with php 5.0.5 it's stored