Bought what I thought was a new non defective Samsung electric range from Lowe's on Sept 11, 23. Seven months later there are streaks in between the oven door glasses. Tried talking to Lowe's and Samsung and no help. Samsung replied that it is "cosmetic" and food spill. If it is food spill, how come the self cleaning feature did not clean it up, or is the self cleaning defective also? I have been complaining about this since July and no help from Lowe's or Samsung. Very frustrating and a waste of time.This is my first and last time buying Samsung or going to Lowe's.