I was in the process of weeding through the comments when I randomly got the message:
You don't have permission to access /wp-admin/edit-comments.php on this server.
Apache/1.3.33 (Debian GNU/Linux free web hosting) Server at blog.so-disco.net Port 80
It only comes up when I try to check the "Pending" messages. "Approved," "Spam" and "Trash" all work just fine and the messages work fine from the dashboard. It is only when I click on "All" or "Pending" that it comes up or if I try to click through to the comments using the sidebar. What gets me is that it was working just fine and then just started showing me this message.