CVS hangs intermittently

[John S O'Sullivan]

I running CVS version 1.11.1p1 on cywin b20 (I am unfortunately locked to
this version of Cygwin). CVS uses a local repository on an attached network
drive.
It has been running for 2 months. In the last two weeks I have noticed a
tendency for CVS to hang. The behaviour is as follows. When you issue a cvs
command it will run but not will not complete.
for example:
cvs update: Updating hnc_config/bash
(Locally modified .bashrc moved to .#.bashrc.1.1)
U hnc_config/bash/.bashrc
U hnc_config/bash/hnc_bash_init.sh

************* it hangs at this point. I hit control-C ******************
cvs [update aborted]: received interrupt signal

[1]+  Done                    /Development/Emacs/emacs-21.1/bin/emacs.exe
main.c
pp  (wd:
/hnc-build/hnc_platform/distribution/tools/StreamingServer/Server.tproj
)
(wd now: /hnc-build)

The problem is intermittent, for example if I launch the command again it
could run to completion :

BlueCat:(76)/hnc-build\>cvs update -A -d -C hnc_config
cvs update: Updating hnc_config
cvs update: Updating hnc_config/bash


Even though it hangs it always manages to complete the required updates. The
problem is not particular to the update command, I have seen it with a range
of commands. Any ideas?

regards
John O'Sullivan