When you install SEO Plugin and it has not set the permalinks. The plugin gives you a warning in red and then gives you two buttons choices. Ignore or Fix it.
But the placement of the text on the buttons is broken see screenshot.
Here are some support details for the computer & browser I am using.
Apple Mac OS X 10.7 Intel
Screen Resolution: 1680 x 1050
Web Browser: Firefox 25.0
Browser Size: 1526 x 802
Thanks for the screenshot. This is a known issue. WP SEO currently does not have an admin stylesheet for the MP6 theme. It is on the to do list. Feel welcome to contribute if you like.
With MP6 Integration into WordPress Core for 3.8 the Yoast crew should give this a look before December 12th proposed launch date. I would like to help but since I have never actually created an admin style sheet I would only be guessing as to how to do it.
You could have a look at the stylesheets for the other admin themes and the yst_plugin_tools one to get an idea.
Not promising anything but I will give it a shot…