Today is Day 6, beautifully developing duck eggs, and I look in the incubator this afternoon and the temp reads 102 degrees! I quickly took the lid off the incubator, and let everything cool. Then put it back but... I don't know whether it's the incubator going wonky or the thermometer. When the temp climbed back up again, it settled once again at 102. Why?? This is my fourth time incubating in this Hovabator, and it has always been ROCK SOLID on temps. Never wavering, fluctuating, changing at all, even when the room changes temp. The thermostat has not been touched since it was stabilized before setting these eggs. The thermometer is an Acu-rite, and has not given me any problems before. Which is more likely to be messing up? The thermometer or the incubator? I have turned the temp down a notch, but I'm afraid to drop it too much. Just as afraid to leave it up. I have just ordered this http://hoeggergoatsupply.com/xcart/product.php?productid=3271&cat=0&page=1 from Hoegger's, in hopes of being able to more accurately calibrate my thermometer and set my mind at ease. But, obviously, I can't do anything until it comes. And I don't want to bother getting another thermometer from Walmart because it's fairly likely to give me a different reading anyway, and who's to say it will be any more accurate? I had finally worked things out with this thermometer to my satisfaction--argh! Help?