ApplicationController not getting called

This seems to have happened when I upgraded from Rails 2.1.1 to 2.1.2
(although I’m not 100% sure but in applicationcontroller doesn’t seem to
be called when I try to access my default controller (I mean the one
that’s mapped in routes.rb like this map.root :controller => “main”)

What this means is that all of a sudden I have to duplicate these types
of calls in my main controller whereas before they used to be provided
by virtue of the ApplicationController executing first

include AuthenticatedSystem
helper :all