I entered the clinical menu and found "option: auto start/stop." it was set to "off." I attempted to select it so that I could change it to "on," but the machine will not permit it to be selected, and it thus cannot be changed. (All other items on the menu could be selected; just the one was "dead.")
Is there anything I can do about this on my own, or does this mean I have a problem that requires professional hardware repair or software reload?