I have it plugged in, and its in the water dish, but the "on light" isn't on.. I plugged it in 4 hours ago and still no fog? Am I doing something wrong? The water is just over the black part that it's required Edit - Just took it out and put it in a shallower dish in the kitchen, works great but throws LOTS of water and the water coming out is pretty **** hot. I will be returning this tomorrow. You can keep this up for informational purposes as a review or whatever if you'd like. Or delete it, doesn't matter.