WordPress MU

On a single post/page in the comment section I have the option to logout. Within the wp-admin pages I have no problem logging out, but from outside the wp-admin I cannot logout. I get an error message.

The URL is as follows: /wp-login.php?action=logout

Then I get an error message which says to try again.

Well I looked into wp-login.php and on line 313 it tells me:

check_admin_referer('log-out');

And if I check this function in the function reference:

http://codex.wordpress.org/Function_Reference/check_admin_referer

I get the idea that you can only logout from the wp-admin pages, is that true? And if so, should it stay like that?

*bump*

http://codex.wordpress.org/Function_Reference/wp_loginout

<?php wp_loginout(); ?>

Works from the template just fine as far as I can tell, header, sidebar, footer, comment.

Check your template, what code is being used to generate the logout link?

If you have something like
<a href="/wp-login.php?action=logout">log out</a>
change it to
<?php wp_loginout(); ?>

Great, thanks that was the problem!

Where do I insert the code in the general-template.php?
I have the same problem with WP MU 2.8.6

Would this be solved if I upgraded?

Thanks

v2006,
check your theme files