>ruby -v
ruby 1.8.5 (2006-12-25 patchlevel 12) [i386-mswin32]

I'm also running on windows vista, but I don't know if this is an
issue on the overall mswin32-x86 platform.

I'm getting an error when trying to recvfrom on a TCP Socket.  The
code looks as follows:

listen_socket = TCPSocket.new("127.0.0.1",5000)
(data,host) = listen_socket.recvfrom( 1024 )

running this code (it's in my unit test) yields:

SocketError: getnameinfo: ai_family not supported.
    ./lib/juggernaut.rb:42:in `recvfrom'

Any idea why this might be occurring?  Is it due to something related
to IPv6 support?