Hello,
I downloaded the binary version of RubyCocoa
(RubyCocoa-0.4.2-tiger.dmg) and installed it with its default options.

But seems there is a problem, because I can't load it!

irb(main):001:0> require 'osx/cocoa'
LoadError: no such file to load -- osx/cocoa
        from (irb):1:in `require'
        from (irb):1

I checked the package content and checked my system too, everything is
in place, but I can't load the library.

ruby 1.8.4 (2005-12-24) [i686-darwin8.5.2]
Mac OS X Version 10.4.7

Thank you all in advance,
- Dunnil