If you click on pages or posts in Wordpress and get 404 errors (either apache or hosting page), here is the fix:
Fix: Go into your Admin page Dashboard | Settings | Permalinks | no need for any change but click [Save Changes]. Whatever this does it fixes this 404 problem with WordPress after you've made changes to your .htaccess file. Simple if you just know to do it.
Source: (Last post) http://wordpress.org/support/topic/241418
Bookmarks