Running 'rake db:test:clone' results in an error.

I get an error running 'rake db:test:clone' with the latest NewRelic (2008-07-07 version 2.3.2):

uninitialized constant ActiveRecord::ConnectionAdapters::PostgreSQLAdapter

I don't get the error if I completely remove NewRelic from my system and re run the rake task.

Here's a link to the results of running the rake task with '--trace':
http://pastie.org/231276