Just downloaded the Windows installer, and in the faq at 
http://rubyinstaller.rubyforge.org/wiki/wiki.pl?RubyInstallerFAQ there 
is a question which indicates that installing both Ruby and Python 
(which I plan to do, already having ActiveTcl installed) may cause Tk 
problems via the environment variables.  Anyone know the truth of this, 
and how to avoid such problems?

J