Restful_authentication not working with <%= error_messages_f

I’ve got restful_authentication installed and working, but only if I
remove <%= error_messages_for :user %> from the new.html.erb view in
app/views/users/. I’m puzzled as to why this isn’t working as I can’t
find anyone else having problems. I also have the following gems/
plugins installed:

gems

actionmailer (1.3.3, 1.3.2)
actionpack (1.13.3, 1.13.2)
actionwebservice (1.2.3, 1.2.2)
activerecord (1.15.3, 1.15.2)
activesupport (1.4.2, 1.4.1)
capistrano (1.4.1)
cgi_multipart_eof_fix (2.1)
daemons (1.0.6, 1.0.5)
fastthread (0.6.4.1)
ferret (0.11.4)
gem_plugin (0.2.2)
gemsonrails (0.7.0)
mongrel (1.0.1)
mongrel_cluster (0.2.1)
mysql (2.7)
needle (1.3.0)
net-sftp (1.1.0)
net-ssh (1.0.10)
rails (1.2.3, 1.2.2)
rake (0.7.2)
ruby-openid (1.1.4)
ruby-yadis (0.3.4)
sources (0.0.1)
termios (0.9.4)

plugins

file_column
gemsonrails
globalize
restful_authentication
(not sure how to check versions, but I think I’ve added edge versions
of them all through subversion.)

The Application Trace shows the following, and I’m wondering if it’s a
globalize problem:
vendor/plugins/globalize/lib/globalize/rails/
active_record_helper.rb:19:in error_messages_for' app/views/users/new.html.erb:1:in_run_erb_47app47views47users47new46html46erb’

I suppose I could just remove the error_messages_for method
permanently but would prefer not to do so.

I found a post on TextSnippets
by Claudio P. that helped me out.