WordPress SEO version: 1.2.5
The plugin works correctly, except the page "Titles & Metas" where I only see an empty page and cannot navigate to the other tabs on this page (https://dl.dropbox.com/u/2073142/wp-seo.png).
I deactivated other plugins, nothing changed.
I downloaded the plugin files again an reinstalled it (also the development version), no changes.
I use the latest version of WP and WP SEO, Twenty Eleven theme.
Thanks for your help!