diff --git a/lib/report/controller.rb b/lib/report/controller.rb
index 48f32616c4..8407798596 100644
--- a/lib/report/controller.rb
+++ b/lib/report/controller.rb
@@ -38,7 +38,7 @@ module Report::Controller
   end
 
   def table_with_progress_info
-    render_widget Widget::Table::Progressbar, @query
+    render :text => render_widget(Widget::Table::Progressbar, @query), :layout => false
   end
 
   if Rails.version.start_with? "3"
diff --git a/lib/widget/base.rb b/lib/widget/base.rb
index 5eb5205936..94d063d2f3 100644
--- a/lib/widget/base.rb
+++ b/lib/widget/base.rb
@@ -18,6 +18,7 @@ class Widget::Base < Widget
   # Write a string to the canvas. The string is marked as html_safe.
   # This will write twice, if @cache_output is set.
   def write(str)
+    str ||= ""
     @output ||= "".html_safe
     @output.write str.html_safe
     @cache_output.write(str.html_safe) if @cache_output
diff --git a/lib/widget/filters/date.rb b/lib/widget/filters/date.rb
index 8ea167e5f0..afec956496 100644
--- a/lib/widget/filters/date.rb
+++ b/lib/widget/filters/date.rb
@@ -1,6 +1,6 @@
 class Widget::Filters::Date < Widget::Filters::Base
   def calendar_for(field_id)
-    include_calendar_headers_tags
+    write include_calendar_headers_tags
     image_tag("calendar.png", {:id => "#{field_id}_trigger",:class => "calendar-trigger"}) +
     javascript_tag("Calendar.setup({inputField : '#{field_id}', ifFormat : '%Y-%m-%d', button : '#{field_id}_trigger' });")
   end
diff --git a/lib/widget/table/progressbar.rb b/lib/widget/table/progressbar.rb
index 4ebf132c1f..8011add85e 100644
--- a/lib/widget/table/progressbar.rb
+++ b/lib/widget/table/progressbar.rb
@@ -1,10 +1,9 @@
 class Widget::Table::Progressbar < Widget::Base
-  attr_accessor :threshhold
+  THRESHHOLD = 500
 
   def render
-    @threshhold ||= 500
     size = @query.size
-    if size >= @threshhold || cached?
+    if size >= THRESHHOLD || cached?
       write(content_tag :div, :id => "progressbar", :class => "form_controls",
       :"data-query-size" => size do
         content_tag :div, :id => "progressbar-load-table-question", :class => "form_controls" do