Thread:Project:Support desk/Easy way to upgrade from version 1.8 to 2.1?/reply (30)

I see. You should take your old LocalSettings.php file and compare it to the new one. There might be settings in the old file, which you now do not have in the new one and those might cause some of these changes to happen.

E.g. in the old version you used the skin "monobook"; the new one looks like you have changed to "vector". The situation might improve again when you change the default skin in LocalSettings.php by changing the value of $wgDefaultSkin back to monobook. If that does not fix the rendering problems (clear the caches in between testing!), then you might want to have a look at the CSS styles. CSS styles might also be present on some pages in your wiki, namely on the wiki pages MediaWiki:Common.css, MediaWiki:Monobook.css (only used with the monobook skin) or MediaWiki:Vector.css (only used with vector). These also influence how stuff is rendered. Possibly you had also added styles to the files in the folder skins/ inside the filesystem.

I also see that $wgLogo is no longer set so that you only see the default logo.