authlogic.rb

# config/initializers/authlogic.rb

Authlogic::I18n.translator = FixedAuthlogicI18n::Translator.new

translator.rb

# lib/fixed_authlogic_i18n/translator.rb

module FixedAuthlogicI18n
  class Translator
    def translate(key, options = {})
      return Message.new(key, options)
    end
  end
  
  class Message
    def initialize(key, options)
      @key = key
      @options = options
    end
    
    def to_s
      I18n.t(@key, @options)
    end
    
    def +(other)
      self.to_s + other
    end
  end
end

Thanks for sharing! Wasted over an hour on this...