I did this: gem install rails --source http://gems.rubyonrails.org Then I ran my tests, and found that some (but not all) of my flash tests are failing. It''s always the same test methods that fail, which reside along-side test methods that have flash tests that don''t fail. Both get and post requests result in failures, so it''s not one particular type of request that is the culprit. Also, when breakpointing, I can send the request, see the response returned with flash populated correctly, and then get an empty hash from ''flash''. Has anybody else experienced something like this?