I just solved the very weirdest WordPress problem and wanted to share the resolution with you. One of our client’s has a WordPress blog, and our blogger emailed today to say that the add a link field was totally whited out and what should she do.
I logged into the blog and found that I could not even get my cursor to lay on the post box, I could add a title and tags, but could not write a post.
The bottom line resolution was in options and under the address for the blog, it had been changed to http://WWW.blog.com and previously had been set as http://blog.com no WWW. The admin link on the blog was http://blog.com no www. When I now access the admin with a www. in front of the URL everything works just peachy, I can see the link field, I can see and write a post. Now the admin link in the sidebar needs to be corrected to reflect the www. addition.