Codeigniter session issue. It logs me out from admin when I visit the un-admin part of the site!

[eluser]gummiforweb[/eluser]
When thing like this happen, what I'd do is, echo out the sessions to see what's the actual value is.
For example:

Code:

var_dump($this->session->all_userdata());
echo '<br/>';
var_dump($this->session->userdata('logged_in'));
echo '<br/>';
var_dump($this->session->userdata('logged_in')!=TRUE);
echo '<br/>';
die('=========');

if ($this->session->userdata('logged_in')!=TRUE)
{
redirect(base_url('index.php/log_in/check/'), 'refresh');      
}

try using the !== operator too.
if all_userdata() is an empty array, then there's some setting problem.