For some reason, my rdoc installation isn't generating hyperlinks for 
file names. I seem to remember that this used to work, but now this 
simple example:

==== t.rb ====
# See docs/file.txt
class MyClass
end
==============

leads to just plain text in the html, not a hyperlink. Rdoc is 
definitely aware of docs/file.txt, and is generating the expected html 
for it, and listing it in the "files" frame. I have a pretty recent 
version of rdoc:

$ rdoc -v
RDoc V1.0pr1: 2004/01/02 05:59:48 (1.2)

Should this be working?