Typically, I just push the Menu button till it goes back to scanning mode, as that tends to gracefully back out, but, if you press that before making sure that CC is "OFF" then you'll possibly leave it in non-Off mode. Do you know what mode it was in? I know that when I was first getting used to how the menus/enter worked (I tend to push the rotating knob rather than pressing E, though), I managed to NOT set loads of values as I'd not press enter after rotating to select a value...now I'm quite consistent about E!