I can't access any pages without putting a trailing "/" and I never had to do that before... so that means that none of my links in the site work because they don't have that trailing "/"
It also means that I can't login to the admin because, even if I manually go to "http://northcoastimports.com/wp-login.php/" , after I put in the login info it redirects me to "http://northcoastimports.com/wp-login.php" without the backslash and then I get a "broken-link" error from the browser.
Also, "http://northcoastimports.com/wp-admin/" gives me a "broken-link" message, and so does "http://northcoastimports.com/wp-admin"
I haven't had this problem before in over a year of using this website. I have two other installations of WP, and all three use the Atahualpa Theme - all with the same problem. I also have an installation of WP with WordPress Default 1.6 that works okay.
I have two other threads in the WP forum that talks about the problem and what I've done so far: