Connecting to second db issue

[eluser]Bramme[/eluser]
Hey all.

I need to connect to a second db (the phpbb db) to fetch a list of recent topics.

I use this code:

Code:

$dsn = 'mysql://user:pass@localhost/phpbb3';
$con = $this->load->database($dsn, TRUE);

$con->select('phpbb3_topics.*');
$con->join('phpbb3_posts', 'phpbb3_posts.topic_id = phpbb3_topics.topic_id');
$con->order_by('phpbb3_posts.post_time', 'desc');
$query = $con->get('phpbb3_topics', 4, 0);
foreach($query->result() as $row) {
    $url = "/forum/viewtopic.php?f={$row->forum_id}&t;={$row->topic_id}";
    $top[$url] = $row->topic_title;    
}

However I get a "Call to a member function result() on a non-object on line x" Line x is where the foreach loop is...