diff --git a/app/controllers/problems_controller.rb b/app/controllers/problems_controller.rb
--- a/app/controllers/problems_controller.rb
+++ b/app/controllers/problems_controller.rb
@@ -97,6 +97,15 @@
     redirect_to :action => 'list'
   end
 
+  def turn_all_on
+    Problem.find(:all,
+                 :conditions => "available = 0").each do |problem|
+      problem.available = true
+      problem.save
+    end
+    redirect_to :action => 'list'
+  end
+
   def stat
     @problem = Problem.find(params[:id])
     if !@problem.available
diff --git a/app/views/problems/list.rhtml b/app/views/problems/list.rhtml
--- a/app/views/problems/list.rhtml
+++ b/app/views/problems/list.rhtml
@@ -6,8 +6,11 @@
 
 <h1>Listing problems</h1>
 
+<p>
 <%= link_to 'New problem', :action => 'new' %>
-<%= link_to 'Turn off all problems', :action => 'turn_all_off' %><br/>
+<%= link_to 'Turn off all problems', :action => 'turn_all_off' %>
+<%= link_to 'Turn on all problems', :action => 'turn_all_on' %>
+</p>
 
 <table>
   <tr>
diff --git a/app/views/test/_test_request.html.haml b/app/views/test/_test_request.html.haml
--- a/app/views/test/_test_request.html.haml
+++ b/app/views/test/_test_request.html.haml
@@ -1,7 +1,11 @@
 %tr{:class => (test_request_counter%2==0) ? "info-even" : "info-odd"}
   %td{:align => "center"}
     = format_short_time(test_request.submitted_at)
-  %td= test_request.problem.full_name
+  %td
+    - if test_request.problem!=nil
+      = test_request.problem.full_name 
+    - else
+      (n/a)
   %td{:align => "center"}
     = test_request.submission.number
   %td{:align => "center"}
diff --git a/app/views/test/result.html.haml b/app/views/test/result.html.haml
--- a/app/views/test/result.html.haml
+++ b/app/views/test/result.html.haml
@@ -1,7 +1,11 @@
 = user_title_bar(@user)
 
 %div{:style => "text-align: center; font-size: 12px"}
-  = "Problem: #{@test_request.problem.full_name}"
+  Problem: 
+  - if @test_request.problem!=nil
+    = "#{@test_request.problem.full_name}"
+  - else
+    = "(n/a)"
   %br/
   = "Submission: #{@test_request.submission.number}"
   %br/
diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -165,7 +165,7 @@
     margin-top: 10px;
     margin-bottom: 10px;
     background: green;
-    padding: 2px;
+    padding: 1px;
 }
 
 div.announcementbox span.title {
@@ -177,17 +177,17 @@
 div.announcement {
     margin: 2px;
     background: white;
-    padding: 2px;
+    padding: 1px;
     padding-left: 10px;
     padding-right: 10px;
 }
 
 div.announcement p {
-    font-size: 13px;
+    font-size: 12px;
 }
 
 div.pub-info, div.pub-info p {
     text-align: right;
     font-style: italic;
-    font-size: 10px;
-}
\ No newline at end of file
+    font-size: 9px;
+}