htaccess problem, rewrite to stats folder

[eluser]Référencement Google[/eluser]
Just remembered I had a My_router function that can make this problem:

Code:

class MY_Router extends CI_Router
{
    function _validate_segments($segments)
    {
        if (count($segments) == 1 and file_exists(APPPATH.'views/static/'.$segments[0].EXT))
        {
            array_unshift($segments, 'static_page', 'show');
        }
        return parent::_validate_segments($segments);
    }
}

The problem is that I am not understanding enough things to find and solve the problem.