It never fails, just when I think I am getting this little beast into the perfect state...something else happens. Some little bugger of a thing. Now it's the timer and light on the computer. I was playing with the timer trying to see if I had the ventilation timer and I don't I have that, I just the timer in numbers. Now since I was playing with it I can't shut it off. It just keeps going and going and going like the eveready battery bunny! I can't find anything that tells me how to operate it. Hmmmmmmmm Any help would be appreciated. Thanks, Kurt