--- a/cygwin.rst Sun Aug 01 16:40:15 2010 +0300 +++ b/cygwin.rst Sun Aug 01 16:41:40 2010 +0300 @@ -53,3 +53,7 @@ * Running X Window. $ XWin -multiwindow& + +To start X application you must set 'DISPLAY': + + $ DISPLAY=:0 xterm&