I received 'resource temporary unavailable' when I tried to install gmp-4.1. I am using Windows Me.Perhaps you are using Windows 98 / Me.In the case of me , Nicholas Wourms <nwourms at yahoo dot com> gave me the advise.Please refer ; http://cygwin.com/ml/cygwin/2002-06/msg00824.html Koide -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/