diff --git a/app/controllers/wiki_controller.rb b/app/controllers/wiki_controller.rb
index 6485e261..3832986f 100644
--- a/app/controllers/wiki_controller.rb
+++ b/app/controllers/wiki_controller.rb
@@ -8,8 +8,7 @@ require 'string_utils'
 class WikiController < ApplicationController
 
   before_filter :load_page
-  caches_action :show, :published, :authors, :tex, :s5, :print
-#  caches_action :show, :published, :authors, :tex, :s5, :print, :recently_revised, :list
+  caches_action :show, :published, :authors, :tex, :s5, :print, :recently_revised, :list
   cache_sweeper :revision_sweeper
 
   layout 'default', :except => [:rss_feed, :rss_with_content, :rss_with_headlines, :tex, :pdf, :s5, :export_tex, :export_html]
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index e33bc0fc..18e144dc 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -64,7 +64,7 @@ module ApplicationHelper
     else 
       "<div id=\"categories\">\n" +
       '<strong>Categories</strong>:' +
-      '[' + link_to_unless_current('Any', :web => @web.address, :action => @action_name) + "]\n" +
+      '[' + link_to_unless_current('Any', :web => @web.address, :action => @action_name, :category => nil) + "]\n" +
       @categories.map { |c| 
         link_to_unless_current(c, :web => @web.address, :action => @action_name, :category => c)
       }.join(', ') + "\n" +
diff --git a/config/environment.rb b/config/environment.rb
index ecee8155..64b6dbca 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -11,7 +11,7 @@ Rails::Initializer.run do |config|
 
   # Enable page/fragment caching by setting a file-based store
   # (remember to create the caching directory and make it readable to the application)
-  #config.action_controller.fragment_cache_store = :file_store, "#{RAILS_ROOT}/cache"
+  config.action_controller.fragment_cache_store = :file_store, "#{RAILS_ROOT}/cache"
 
   # Activate observers that should always be running
   config.active_record.observers = :page_observer
diff --git a/config/routes.rb b/config/routes.rb
index a5d49bab..e00649a5 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -22,10 +22,8 @@ ActionController::Routing::Routes.draw do |map|
   connect_to_web map, ':web/web_list', :controller => 'wiki', :action => 'web_list'
   connect_to_web map, ':web/show/diff/:id', :controller => 'wiki', :action => 'show', :mode => 'diff'
   connect_to_web map, ':web/revision/diff/:id', :controller => 'wiki', :action => 'revision', :mode => 'diff'
-  connect_to_web map, ':web/list', :controller => 'wiki', :action => 'list'
-  connect_to_web map, ':web/list/:category', :controller => 'wiki', :action => 'list'
-  connect_to_web map, ':web/recently_revised', :controller => 'wiki', :action => 'recently_revised'
-  connect_to_web map, ':web/recently_revised/:category', :controller => 'wiki', :action => 'recently_revised'
+  connect_to_web map, ':web/list/:category', :controller => 'wiki', :action => 'list', :requirements => { :category => /.*/}, :category => nil
+  connect_to_web map, ':web/recently_revised/:category', :controller => 'wiki', :action => 'recently_revised', :requirements => { :category => /.*/}, :category => nil
   connect_to_web map, ':web/:action/:id', :controller => 'wiki'
   connect_to_web map, ':web/:action', :controller => 'wiki'
   connect_to_web map, ':web', :controller => 'wiki', :action => 'index'