Lyle says:

    >I do not have access to a Windows XP box, and am not planning to upgrade
    >anytime soon, so I haven't actually run the code on that OS. Note that this
    >was a Cygwin-based build of Ruby and FXRuby; for the next Windows installer
    >Andy's going with a Visual C++ (a.k.a. "native") build of Ruby and so I
    >guess we can cross our fingers and see how that works on XP.


There are known problems with Cygwin and Windows XP, 
all we face with VC++ and XP are unknown problems.  
So I'm crossing fingers and toes, as necesary :-)

/\ndy