I changed a date on a post and created a 404 problem. I have created a 404.php file. I have modified the .htaccess file to "ErrorDocument 404 /blog/index.php?error=404". WordPress is installed in the subdirectory /blog. It appears that the 404 problem is specifically with the article that I changed. Original article link was http://www.thetimeandmoneygroup.com/blog/2006/10/26/the-commodities-bull-market-is-back This link cause the generic 404 error to occur. My preference is the custom 404 error that I created.