Have the same problem but this does not seem to work for me. If I change the .htaccess-file in the wordpress directory or create a new one in /wp-admin the database breaks down.
The error-message I get in the dashboard goes:
Forbidden
You don't have permission to access /main/wp-admin/index-extra.php on this server.
Apache/1.3.33 Server at neurobash.com Port 80
What to do? (other than possibly start a new thread regarding this) Would appreciate any ideas.