I have a question concerning the glass on my Big E. I wipe the glass with a paper towel at least twice a day, and I clean the stove 2-3 times a week. I'm not having any problem with the heat output, but it has been pretty warm here (40 degrees) for the last few days, so I've only been running the stove on setting 1 or 2. My question is, the glass has what seems to be permanent dark brown streaks on it. These streaks were not there a few days ago. They are nearly impossible to remove. What caused them? I noticed that my flame was acting funny the last couple of days, so I shut the stove down to give it another good cleaning, and presto, there are the streaks. Does anyone have the same problem? Any suggestions how to get rid of these ugly things?