REPOST: Re: ArgumentError with Remarkable

[Reposting this once, since it's been nearly two weeks without a single answer.]

Hi everyone.

The Remarkable Google group appears to be kind of quiet, so I thought I'd ask this here.

I have an application using Rails 2.3.4, RSpec 1.2.9, and Ruby 1.8.7 (on Snow Leopard, in case that's significant). I thought I'd try to simplify some of my specs by installing Remarkable 3.1.10. The gem installed without incident, but when I put require 'remarkable_rails' in my spec_helper file, I got a bunch of error spew beginning with

/Library/Ruby/Gems/1.8/gems/remarkable_activerecord-3.1.10/lib/remarkable_activerecord/human_names.rb:11:in `human_name': wrong number of arguments (1 for 0) (ArgumentError)

and tracing back to /Library/Ruby/Gems/1.8/gems/rspec-1.2.9/bin/spec:5 (apparently none of my app or spec code was involved, just the RSpec and Remarkable libraries).

Google yields no one reporting similar, and I'm not familiar enough with RSpec or Remarkable internals to really see what's going on. Any ideas?