Rolando:
When I switched to rails 1.2.1, I got the same error message for
pages using the default routes. Are you seeing the same no route
found error on other pages? Are you using any symbolic links in your
application? If so, check out this ticket: http://dev.rubyonrails.org/
ticket/6755
Hope it helps,
-Anthony
It explains that the RAILS_ROOT
