Hi all , I've bought months ago an used Orville Harmonizer , but it never start up correctly and the previous owner could not give me any suggestion . Switching on the unit , after the first display with the Eventide logo , the screen became blank and I cannot operate anything . I contact a service here in Italy . I've tried to resume the system switching on and holding the Setup pushbutton . The menu asked me if I wanted to restore the program to default values and I select "yes" . It start a self test , and it run unstopping up to now ( 24 hours later!!!) . Anyone know how much time it takes? Am I following the correct way to reset the machine??