[Discuss-gnuradio] SO_LINGER: Protocol not available

[gavin]

Hello GNU List,

Newbie question here on my installation.  I thought I had successfully  
installed the
GNURadio and all required packages, and could run most of the examples in the
src/gnuradio-3.1.3/gnuradio-examples/python folder.

However, when I try to run any of the samples in the network folder I  
get the following
error -

$ python dial_tone_sink.py
SO_LINGER: Protocol not available
Aborted (core dumped)

Can someone suggest if I have missed a package in the install that  
would lead to this
sort of error?  Or would it be more related to a Cygwin or Vista mailing list?

Some of the system details include
Vista with Cygwin
Python 2.5
GNURadio 3.1.3
boost 1.36
fftw 3.2.1
wxPython 2.8.9.2
glib 2.20.2


Thanks for your help in advance

Gavin