Hello, Inside a view i have a list of nations, the drop-down is "observed" and at any modification of this list an other nested list (with a regions list) will be updated, that is itself observed and that update an other nested list of provinces. When i modify the nation at the beginning the regions and provinces are correctly updated, but when the region is automatically updatet its modification will be revealed by its observer and that read a "null" value (as a string) and an error will be generated. This happened ONLY using Internet Explorer, not using Firefox or Safari. Any idea? Thanks! Iwan Sorry for my poor english :) -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---