diff --git a/app/models/problem.rb b/app/models/problem.rb
--- a/app/models/problem.rb
+++ b/app/models/problem.rb
@@ -3,7 +3,7 @@
   belongs_to :description
 
   def self.find_available_problems
-    find(:all, :conditions => {:available => true})
+    find(:all, :conditions => {:available => true}, :order => "date_added DESC")
   end
 
 end