I\'ve recently installed Ruby 1.9.1 on Windows 7, and apparently it doesn\'t come with the standard ri documentation. So when I do \'ri Array\', I get:
C:\\
All the Ruby Docs are at http://www.ruby-doc.org
So the array documentation is at:
http://ruby-doc.org/core/classes/Array.html
Never tried it on windows but because its saying Nothing Known about X its not that its not installed just not got anything there.
Try installing a gem as you can then ri GEM_CLASS as that should provide defentions, should let us see if its missing documentation or if ri's not looking in the right place