Form action not sending to create action

hi all,
I'm trying to set up a simple form and getting some odd behavior in the
resulting action.

Following is my code for the form:

<% form_for @user_session do |f| %>
  <%= render 'shared/error_messages', :object => f.object %>
  <p>
    <%= f.label :email %><br />
    <%= f.text_field :email %>
  </p>
  <p>
    <%= f.label :password %><br />
    <%= f.password_field :password %>
  </p>
  <p><%= f.submit "Submit" %></p>
<% end %>

Following is the logic in the "new" action for the controller associated
with this view:

  def new
    @title = "Login"
    @user_session = UserSession.new
  end

I'm using Authlogic for my UserSession:

class UserSession < Authlogic::Session::Base
  def to_key
    new_record? ? nil : [ self.send(self.class.primary_key) ]
  end
end

Following is the HTML output of the form:

<form accept-charset="UTF-8"
action="/user_sessions/%23%3CUserSession:0x103863f40%3E"
class="new_user_session" id="new_user_session" method="post">

Why isn't the action = to "/user_sessions" - where is that additional
bit coming from and how can I get rid of it?

Thanks,