shoes and the right_aws library

[Jon Brandenburg]

I'm new to ruby/shoes/right_aws, so the following question may (hopefully?) 
have a simple answer.  I'm using shoes2 on ubuntu (I've also tried directly 
from the current build via git) and am building a small application to use 
amazon web services using the right_aws library.  I have the following code in 
my app:

Shoes.setup do
  gem 'right_aws'
end

require 'right_aws'


which causes shoes to throw the following error:

Error in /tmp/selfgz15528/lib/shoes.rb line 394 | Thu Apr 09 11:35:02 -0600 2009
! undefined method `new' for Digest:Module.

I'm currently using the right_aws (v1.10) / ruby (v1.8.7) library successfully 
for other applications that I have written, but when I try to integrate it into 
shoes it falls on its face.  I've done a diff between the digest.rb file 
embedded in shoes against the digest.rb file in my local ruby library and they 
are identical.

Any suggestions?

Thanks!

Jon