Merged r9359 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/1.4-stable@9360 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/boards_controller.rb

@@ -47,7 +47,7 @@ class BoardsController < ApplicationController
                                       :include => [:author, {:last_reply => :author}],
                                       :limit  =>  @topic_pages.items_per_page,
                                       :offset =>  @topic_pages.current.offset
-        @message = Message.new
+        @message = Message.new(:board => @board)
         render :action => 'show', :layout => !request.xhr?
       }
       format.atom {