I feel completely stupid. I have never had this problem before. I cleaned all the glass on my DBV. Now I am having trouble getting the heater cover back on . I don't want to break it. That metal clip that sticks up is the problem. does the clip go in front of the glass? How do you pry it forward to shove the heater cover down. For some reason when I have it on, the cover is not stable on there. it's loose and moving all around. I need to put it away but for some reason, I can't remember how to get the cover on right. Must be a stoner.