I received a pressure cooker for Christmas. I still haven't used it. Quite frankly, I'm afraid of it. Today, I got it out and was reading the manuel it came with. Get to the bottom of the 2nd page and it says in big bold letters to not use it on a flat/glass/ceramic cooktop stove. GREAT! I have a glass flat-top stove. It said because the bottom of the pressure cooker in concave, heat will not be distributed evenly and can damage my stove. Now what?