Pagintation error (offset)

[eluser]epseix[/eluser]
Right, using pagination for the first time and CANNOT get it to work beyond the first page (404 error). It all seems to revolve around the $offset variable as if I change the offset's variable to an integer (such as 15), it displays the results on the first page from row 15 onwards - but the $this->uri->segment(2) variable is just not working. It all displays correctly, but second page won't load (as I said, 404 error).

Controller:

Code:

<?php
class Brands extends CI_Controller
{
                public function index()
                {
                                $this->load->library('pagination');
                                $config['base_url']   = base_url() . '/brands/';
                                $config['total_rows'] = $this->db->count_all('seixweb');
                                $config['per_page']   = 15;
                                $limit                = $config['per_page'];
                                $offset               = $this->uri->segment(2);
                                $this->pagination->initialize($config);
                                $this->load->model('Default_model');
                                ... Etc.
                }
}

Model:

Code:

<?php
class Default_model extends CI_Model
{
                function get_list($limit, $offset)
                {
                                $query = $this->db->get('tbl', $limit, $offset);
                                return $query->result_array();
                }
}

URL (first page):

Code:

http://www.mydomain.com/brands

URL (second page):

Code:

http://www.mydomain.com/brands/15

What am I doing wrong?