Hi Eljay, thanks! 'clear' and 'ESC [ 2 J' do not work. I have tried 'dir'. It does not work too. I guess the routine CALL System does not work? BTW: clear is a unix-command. Can it work in a dos-shell with cygwin? Lars ----------------- >Hi Lars, > >Try: > >CALL System('clear') > >Or you could just send the X3.64 escape sequence: ESC [ 2 J > >HTH, >--Eljay > >