If you have any problems, be sure to check first if it isn't a well-known Perl problem. The Bugzilla trouble-shooting page at http://www.bugzilla.org/docs216/html/troubleshooting.html documents them well. If the problem doesn't match, send a message (see Chapter 7), along with any relevant information (including relevant contents of your apache error log file), and I'll be happy to help you out.