problem with refresh data

[eluser]cipherz[/eluser]
<?php

class Member extends Controller {

var $folder = 'member/';
function Member ()
{
parent::Controller();
}

function index()
{
$this->load->model('Member');
$data['list'] = $this->Member->list();
$main['content'] = $this->load->view($this->folder.'index', $data, true);
$this->load->view($this->folder.'layout', $main);
}

function create()
{
$main['content'] = $this->load->view($this->folder.'create', array(), true);
$this->load->view($this->folder.'layout', $main);
}

function do_create_item()
{
$this->load->model('Member');
$data['firstname'] = $this->input->post('firstname');
$data['lastname'] = $this->input->post('lastname');

$this->Member->create($data);
redirect($this->folder.'index');
}
}

index page - list all members
create page - form to input data : firstname and lastname and save button
do_create_item - action to insert member to database

once press save button it redirect to index page but the new record doesnt show up i do have to press refresh button bfore the item appear.