Thanks for your answer pogenwurst. I'm still a bit confused though 
I'm using pun_hash() to generate the password..is this what I'm doing wrong?
$new_pwd = pun_hash($form_new_pwd1);1 2007-04-03 08:52
Re: changing password (3 replies, posted in PunBB 1.2 troubleshooting)
2 2007-04-02 12:44
Topic: changing password (3 replies, posted in PunBB 1.2 troubleshooting)
after I change password (update the table) and call the pun_setcookie()-function it logs me out of the system...why is that?
$expire = ($save_pass == '1') ? time() + 31536000 : 0;
pun_setcookie($pun_user['id'], $new_pwd, $expire);
check_cookie($pun_user);EDIT:
after I set the cookie I try to run check_cookie($pun_user); ..I guess it's where I'm getting logged out, but I can still not figure out why. Any ideas?