I'm experiencing a problem when attempting to change the permalink setting. I've searched both your support forum as well as browsed through Google for people with the same issue as mine, but was unable to find the exact same problem.
When I change the permalink setting to /%postname%/ all the pages function properly except my 'Blog' page which gives me 'Error establishing a database connection'. I've attempted to use other Common Settings provided by Wordpress but the result is always the same error. Do you have any idea what could be causing this error, and how I might fix it?