Hi,
I had my wordpress install in a subfolder /blog/
Decided to move the blog to the root of the site.
Followed the instructions regarding giving wordpress its own folder.
http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory
This was successful.
The blog is displayed as the site root, pages & post links work.
I can log in as admin via /blog/wp-login.php
Everything in the admin seems normal there, apart from one thing (so far):
the Settings > Permalinks section remains black?