I used Elgg 1.7 without much problems, wanted to try out 1.8 b1 and I've been able to install it.

But as soon as I finished I reached the administration page where I'm not able to click any other button than Dashboard. All others just highlits without anything loading.

So I log out and now I can't log in again because the login box have just 3 edit boxes, one for username, one for password and another under it that I suppose it should be the button.

Buttons are missing also from register and lost password pages.

Tried but can't figure out myself. What can it be?

Thanks for help