diff --git a/plugins/mezuro/controllers/myprofile/mezuro_plugin_range_controller.rb b/plugins/mezuro/controllers/myprofile/mezuro_plugin_range_controller.rb
index 3f96398..c8baf15 100644
--- a/plugins/mezuro/controllers/myprofile/mezuro_plugin_range_controller.rb
+++ b/plugins/mezuro/controllers/myprofile/mezuro_plugin_range_controller.rb
@@ -28,7 +28,6 @@ class MezuroPluginRangeController < MezuroPluginMyprofileController
     metric_configuration.save
     if metric_configuration_has_errors? metric_configuration
       @error = metric_configuration.errors[0].message
-      #redirect_to_error_page metric_configuration.errors[0].message
     end
   end
 
@@ -41,7 +40,7 @@ class MezuroPluginRangeController < MezuroPluginMyprofileController
     metric_configuration.ranges[index] = Kalibro::Range.new params[:range]
     metric_configuration.save
     if metric_configuration_has_errors? metric_configuration
-      redirect_to_error_page metric_configuration.errors[0].message
+      @error = metric_configuration.errors[0].message
     end
   end
 
@@ -57,9 +56,9 @@ class MezuroPluginRangeController < MezuroPluginMyprofileController
     else
       formatted_metric_name = metric_name.gsub(/\s/, '+')
       if metric_configuration.metric.class == Kalibro::CompoundMetric
-        redirect_to "/myprofile/#{profile.identifier}/plugin/mezuro/edit_compound_metric_configuration?id=#{configuration_content.id}&metric_name=#{formatted_metric_name}"
+        redirect_to "/myprofile/#{profile.identifier}/plugin/mezuro/metric_configuration/edit_compound_metric_configuration?id=#{configuration_content.id}&metric_name=#{formatted_metric_name}"
       else
-        redirect_to "/myprofile/#{profile.identifier}/plugin/mezuro/edit_metric_configuration?id=#{configuration_content.id}&metric_name=#{formatted_metric_name}"
+        redirect_to "/myprofile/#{profile.identifier}/plugin/mezuro/metric_configuration/edit_metric_configuration?id=#{configuration_content.id}&metric_name=#{formatted_metric_name}"
       end
     end
   end
diff --git a/plugins/mezuro/lib/kalibro/range.rb b/plugins/mezuro/lib/kalibro/range.rb
index c96f707..28f6e1d 100644
--- a/plugins/mezuro/lib/kalibro/range.rb
+++ b/plugins/mezuro/lib/kalibro/range.rb
@@ -18,7 +18,7 @@ class Kalibro::Range < Kalibro::Model
 
   def end=(value)
     @end = value.to_f
-    @end = 1.0/0.0 if value == "INF"
+    @end = 1.0/0.0 if value =~ /INF/
   end
 
   def end
diff --git a/plugins/mezuro/views/mezuro_plugin_range/create_range.rjs b/plugins/mezuro/views/mezuro_plugin_range/create_range.rjs
index 6e77ee4..73adfac 100644
--- a/plugins/mezuro/views/mezuro_plugin_range/create_range.rjs
+++ b/plugins/mezuro/views/mezuro_plugin_range/create_range.rjs
@@ -1,3 +1,6 @@
-page.alert @error
-page.visual_effect :toggle_slide, "range_form"
-page.insert_html :bottom, "ranges", :partial => "range", :locals => {:range => @range}
+if @error.nil?
+  page.visual_effect :toggle_slide, "range_form"
+  page.insert_html :bottom, "ranges", :partial => "range", :locals => {:range => @range}
+else
+  page.alert @error
+end
diff --git a/plugins/mezuro/views/mezuro_plugin_range/update_range.rjs b/plugins/mezuro/views/mezuro_plugin_range/update_range.rjs
index 5b95d3b..3000105 100644
--- a/plugins/mezuro/views/mezuro_plugin_range/update_range.rjs
+++ b/plugins/mezuro/views/mezuro_plugin_range/update_range.rjs
@@ -1 +1,5 @@
-page.reload()
+if @error.nil?
+  page.reload()
+else
+  page.alert @error
+end
--
libgit2 0.21.2