Scaffold issues in Rails 1.2

Hi all,

after generating a scaffold for a model I get an almost empty
_form.rhtml:

<%= error_messages_for 'backup' %>

<!--[form:backup]-->
<!--[eoform:backup]-->

however, the rest of actions (show and list) work fine. Is this new in
1.2 version?
I don't mind to put the fields by myself but I was used to get filled
up forms...