This started out as a VIM problem and now narrowed down to a simple file system problem
>cat foo AAAAAAAA >cat bar BBBB >cp bar foo >cat foo BBBB AAA > foo - file contains "AAAAAAAA\n" bar - file contains "BBBB\n" I can duplicate the same problem in VIM but cannot duplicate using notepad So is this a problem with the cygwin file system or Vista? Didn't have this problem before SP1 RC Seems to be a file system I/O problem where buffers are written out without truncation. I was going to uninstall SP1 RC but now waiting for official SP1 first. Cygwin DLL 1.5.25 SP 1 v.668 Richard -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/