HostingRails.com

Yes, Rails 2.2.2 is installed on the server. You can verify this using the following command.

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gem list rails
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When I ran "gem list rails" just now, the highest version shown is 2.1.2.  

My dev environment is 2.2.2.  ... what do I need to do to get the app environment to match?

I've installed rails version 2.2.2 on the server now. Please verify.

Verified 2.2.2, thanks!

Hmmm, app blew up when I tried to change my deployment environment to 2.2.2 and restart.  Top of error message from the mongrel log:

/usr/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:530:in `send': undefined method `cache_template_loading=' for ActionView::Base:Class (NoMethodError)
	from /usr/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:530:in `initialize_framework_settings'
	from /usr/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:529:in `each'

Gem issues?  I'd try to diagnose but I'm clueless on gems.

2.2.2 version of my app does have a few new lines in inflections.rb file in /Config/Initializers folder, but they ran fine on local 2.2.2 environment.

Disregard.  Googled the error message and found the solution.  Must remove the following line from production.rb:

config.action_view.cache_template_loading = true