K, here's what happens
When I got here, I login. Type my username and pass. The page loading.
The browser re-load the main page. Somehow, I didn't really login, but my username is there on the user list at the bottom of the page.
Then I login again, and everything went normal.
How do I solve this ? So I just have to login once everytime I come here ? Somehow this is kinda annoying. ^^