Rails - Dec 2005 - trouble with fastcgi and "undefined method `is_cgi?''"

I''m trying to get started with fastcgi on apache 2.0.54 on Fedora Core
4.
I''ve created a really simple Rails app that doesn''t do any
database actions.
It works fine when I call it as CGI, but when I try to switch to fastCGI, I 
have problems.

I get the following error in log/fastcgi.crash.log:
  [20/Dec/2005:10:16:53 :: 26912] Dispatcher failed to catch: undefined method 
`is_cgi?'' for FCGI:Class (NoMethodError)
    /usr/lib/ruby/gems/1.8/gems/fcgi-0.8.6.1/./fcgi.rb:593:in
`each_cgi''
    /usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/fcgi_handler.rb:52:in 
`process!''
    /usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/fcgi_handler.rb:22:in 
`process!''
    /var/www/html/test2/public/dispatch.fcgi:24
  killed by this error

There''s a bunch of error messages in /var/log/httpd/error.log, but as
far as I
can tell, all they really say is that dispatch.fcgi died prematurely.

Here''s (what I think is) the relevant snippet from the httpd.conf: 
  LoadModule fastcgi_module modules/mod_fastcgi.so
  <IfModule mod_fastcgi.c>
      FastCgiIpcDir /tmp/fcgi_ipc/
      AddHandler fastcgi-script .fcgi
  </IfModule>
  <Directory "/var/www/html/test2">
    AllowOverride All
  </Directory>

Here''s the rewrite stuff from public/.htaccess :
  RewriteRule ^$ index.html [QSA]
  RewriteRule ^([^.]+)$ $1.html [QSA]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule ^(.*)$ dispatch.cgi [QSA,L]

I''m running:
  rails 1.0.0
  fcgi (0.8.6.1)
  mod_fcgi 2.4.2
  fastcgi devel libraries 2.4.0
  apache 2.0.54
  Fedora Core 4

Any ideas?

This problem went away when I uninstalled the fcgi gem and used a 
manually-installed fcgi instead.

This brings to mind a related question:
In the wiki at http://wiki.rubyonrails.com/rails/pages/fastcgi
it says 
  in public/dispatch.fcgi change 

    require ''fcgi''

  to
 
    require ''rubygems''
    require_gem ''fcgi''

as part of the fastcgi installation instructions.  Since there wasn''t a
"require ''fcgi''" line in my public/dispatch.fcgi , I
ignored this instruction.
 There was, however, a "require ''fcgi_handler''" 
Should I have replaced that
line, and if so, with what?