diff --git a/app/controllers/tasks_controller.rb b/app/controllers/tasks_controller.rb
--- a/app/controllers/tasks_controller.rb
+++ b/app/controllers/tasks_controller.rb
@@ -14,15 +14,19 @@
   def view
     base_filename = File.basename("#{params[:file]}.#{params[:ext]}")
     filename = "#{RAILS_ROOT}/data/tasks/#{base_filename}"
+    #filename = "/home/ioi/web_grader/data/tasks/#{base_filename}"
+    #filename = "/home/ioi/web_grader/public/images/rails.png"
     if !FileTest.exists?(filename)
       redirect_to :action => 'index' and return
     end
-    # ask Apache to send the file --- doesn't quite work...
-    #response.headers['Content-Type'] = "application/force-download" 
-    #response.headers['Content-Disposition'] = "attachment; filename=\"#{File.basename(filename)}\"" 
-    #response.headers['Content-length'] = File.size(filename)
-    #response.headers['X-Sendfile'] = filename
-    #render :nothing => true
+
+    response.headers['Content-Type'] = "application/force-download" 
+    response.headers['Content-Disposition'] = "attachment; filename=\"#{File.basename(filename)}\"" 
+    response.headers["X-Sendfile"] = filename
+    response.headers['Content-length'] = File.size(filename)
+    render :nothing => true
+
+    return
 
     send_file filename, :stream => false, :filename => base_filename
   end