I have a test site that's not on the Internet, so it is at http://localhost/kitchen/
The About page and a new Shipping page are both giving 404 errors. The URL of About is http://localhost/kitchen/about and I see "about" is in the permalink of the page.
When I switch to the default Permalink structure, the page is visible. When I choose the second Permalink option (date+title) there are 404s.
Is there a debug option to ask WP to show what it thinks it's doing? Or what part of the .htaccess is being used?
I just created it with WP 3.1.3 and the Weaver theme.