title: CodeIgniter 2.1 issue with show_404() and 404_override
body: <p>I have been working with <strong>CodeIgniter</strong> for quite a while now and I'm currently doing a project for a client that would like a custom <strong>404</strong> page. Everything is fine and the <code>404_override</code> it works great.</p>
  
  <p>My issue comes when a visitor is trying to access a article that do not exist I would like to call the <code>show_404()</code> function, but this shows me the <code>"out of box"</code> 404 page and not the one written in the 404_override.</p>
  
  <p>I have seen some fixes for older versions, but I can't get it to work in <strong>2.1</strong>. So if anyone can help me out of this I would be really grateful.</p>