No not a ghost. We have had for many years had many problems with digital display. Not under warranty any more. Must notify that start button was partially recessed and left home for approx 3 hours when we came back the house smelled like thing had been cooking and the microwave had been running for possibly the entire time gone. No it wasn't running when we left. This is important becuase it could have lead to a fire. The ovens exterior was radiating heat. When looking at the panel the bottom start button is broken? Need to have some type of notification to public. Hazardous.