The way my site is set up is that all users who register are authors, who should be able to post content. When a user signs up, I check the "users" tab in the dashboard, and they are classified as such.
I registered a "dummy" user account, and I can see the admin bar, however, when I click to do ANYTHING (add post, edit profile, etc) it just refreshes my home page.
Any ideas? This is a live site, so a full reinstall would have to be very quick, and I'd need a link to a detailed way to do so without losing any content.