On Feb 15, 2008, at 10:21 AM, Max Williams wrote:

> Hi - i'm trying to write a ruby program on my wife's mac (i use linux
> normally).  In irb i can require a gem fine, but when i write a little
> program, save it on her desktop and run it, the require doesn't work -
> it can't find it.

If it is a gem that has gone missing try adding:

require 'rubygems'

before you attempt to require the gem.  I'm assuming the gem is  
installed in the gem repository and isn't just sitting in a file in a  
working directory somewhere.

Gary Wright