I've been creating new users for the life of my site (http://nmpolitics.net) when I need new posts to have different authors of articles. I just upgraded to WordPress 3.0. Today I tried to create my first user in 3.0, and it won't let me. I get this error message:
"Catchable fatal error: Object of class WP_Error could not be converted to string in /home3/nmpoliti/public_html/index/wp-includes/formatting.php on line 2772"
I checked, and my settings are still set up to allow my e-mail address multiple users. Any ideas?