RoutingError cutting off controller name?

I have my app setup under /var/www/pcdb/ and have lighttpd
appropriately configure (at least I hope) and the entries in my
routes.rb to support the subdirectory setup. The app runs fine when
not in a sub directory and the app home page works fine when I send the
request to just /pcdb/. The production.log file shows the following
error:

ActionController::RoutingError (Recognition failed for "n/show/44"):

The request actually being sent is for /pcdb/admin/show/44. This app
works perfectly until I stick it in a sub folder.

I'm totally baffled on this one, I just can't figure it out.

Software versions as follows:

ubuntu server 6.0.6.1
lighttpd 1.4.11
ruby 1.8.4
rails 1.1.6

Here's my lighttpd.conf entry for this app:

$HTTP["url"] =~ "^/pcdb/" {
server.document-root = "/var/www/pcdb/public/"
alias.url = ( "/pcdb/" => "/var/www/pcdb/public/" )
server.error-handler-404 = "/dispatch.fcgi"
server.indexfiles = ("dispatch.fcgi")
fastcgi.server = (".fcgi" =>
   ("localhost" =>
      ("socket" => "/tmp/pcdb.socket",
                   "min-procs" => 1,
                   "max-procs" => 1,
        "bin-path" => "/var/www/pcdb/public/dispatch.fcgi",
        "bin-environment" => ("RAILS_ENV" => "production"),
        "strip-request-uri" => "/pcdb/"
  )))
}

Also, from my routes.rb:

  ActionController::AbstractRequest.relative_url_root = "/pcdb"
  map.connect ':controller/:action/:id'

Any help is much appreciated.