Edit options - global options - Use Spider-friendly URLs? -
SEO
Causes an "Page not found" error message. Setting the option back to none, and everything works fine.
I'am running PhotoPost Classifieds 4.01
VBulletin 3.8.5
Server OS Linux CentOS
Web Server Apache v2.0.63 (cgi)
PHP 5.2.11
MySQL Version 5.0.89-community