I was trying to get ruby-growl to work with Growl 1.1.1 on OS X 10.5 in order to use this cool timer script by Jeremy Hinegardner to work. When I ran the following script: I got this error: ruby-growl.rb:187:in `send': Connection refused - send(2) (Errno::ECONNREFUSED) Here’s how to fix that on OS X 10.5 Go to System Preferences and click GrowlChoose NetworkCheck ‘Listen for incoming notifications