I hadn't posted anything new since a few days back. I posted about WordPress 2.9 right after updating it.
Now I updated some plugins, and all of a sudden I can't post new stuff. When I go to wp-admin/post-new.php, it redirects my browser to the index of my blog.
I checked the error log on my server, and there's nothing. I also deactivated all of my plugins, checked again, and the problem remains.
What could this be?