I was trying a couple of things in the general settings, and saved it. After that the site I'm building (www.imontv.se/wordpress) looks like crap and worse - I can't login in the WP Admin system anymore.
When I try to reach imontv.se/wordpress/wp-admin I get this:
The requested URL /wp-login.php?redirect_to=http%3A%2F%2Fimontv.se%2Fwordpress%2Fwp-admin%2F&reauth=1 was not found on this server."
Help greatly appreciated.