我在改用固定連結的方式在我的部落格，可世醫值發生404找不到網頁的錯誤，後來在Improper 404 Error Handling Fix For WordPress 2.5發現原來是Woedpress 2.5.1的一個錯誤，Orz!
You can apply the fix manually by editing the /wp-includes/query.php file. The offending code is on line 922:
if ( ('page' != get_option('show_on_front') ) || ( $reqpage != get_option('page_for_posts') ) ) {
Change it to:
if ( ('page' != get_option('show_on_front') ) || ( $reqpage !== get_option(’page_for_posts’) ) ) {