Dear Gary, you are absolutely right. Vim is not the problem. I did two changes at the same time and indeed tried the vim -u none but maybe did not catch the error. Finally what causes the error is: inoremap <esc> <Nop> no my vimrc. From http://vimdoc.sourceforge.net/htmldoc/map.html: *<Nop>* A easier way to get a mapping that doesn't produce anything, is to use "<Nop>". Anyways this is not the expected behavior. Is there some complexity here that I'm not capturing? In theory I'm disabling the <esc> key and that's all. Why is it interfering with m arrow keys and the del key? Best regards, -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple