Help with email - I'm new to CI

[eluser]ChaosKnight[/eluser]
Hi, I started using CI yesterday and I'm loving it! There's only a few things that still bothers me... Firstly I find my own code very... very... very... slow... I don't know if it's only because I haven't enabled the cache yet. If someone can find the time to quickly look through my controller code, I'd really appreciate any help.

Contact controller

Code:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

  class Contact extends Controller
  {
    function index()
    {
      $this->load->helper(array('html','url','form'));
      $this->load->library('form_validation');
      $this->load->library('email');

      $this->form_validation->set_error_delimiters('<div class="error">','</div>');

      $rules['name']="trim|required|xss_clean";
      $rules['email']="trim|required|valid_email|xss_clean";
      $rules['subject']="trim|required|xss_clean";
      $rules['message']="trim|required|xss_clean";

      $this->form_validation->set_rules($rules);

      $data['page_title'] = 'Contact Us';

      if ($this->form_validation->run() == FALSE)
      {
    $this->load->view('header',$data);
    $this->load->view('nav');
    $this->load->view('sidebar');
    $this->load->view('contact');
    $this->load->view('footer');
      }
      else
      {
    $this->email->from('[email address]','[name]');
    $this->email->to('[email address]');

    $this->email->subject($_POST['subject']);
    $this->email->message($_POST['message']);

    $data['title']='Contact Us';
    $data['flash']=$this->email->send()?'The message has been recieved, thank
                       you!':'The message could not be sent, please try again.';

    $this->load->view('header',$data);
    $this->load->view('nav');
    $this->load->view('sidebar');
    $this->load->view('contact');
    $this->load->view('footer');

      }
    }
  }
/* End of Contact.php controller */

At the moment that code does nothing, I can't see why... The contact view is very basic, it's only a page with 4 fields (name, email, subject and message)

If someone can tell me why it's so slow and what I did wrong, I would be really grateful, thanks!

Oh and the email config page is where the tutorial told me to put it config/email.php

Thanks!