iv got a special problem with the upgrade from 1.2 to 1.5.
My domainname includes a german alpabetic character: Ã¼
http://www.schÃ¼ckens.de which is in international code http://www.xn--schckens-85a.de . But after installing the side appears whithout any css layout and you can see in the sourcecode of the hp that this adress has been modified, in this http://www.xn–schckens-85a.de/wordpress/wp-content/themes/default/style.css" type="text/css" media="screen" so that the installation cannot find any layout, because that adress does not exist. I looked up in php my admin looking for changes made by the upgrade process but erverything is still right.
Does anybody know what the problem is and how to fix it.
Thank u all for help