Preheat bread machine bread pan by filling with hot water and place aside.  Add 1 1/3 cups water to a microwave safe measuring cup.  Add 2 Tbs unsalted butter to the water.  Microwave on high for 30 seconds.  Stir and microwave on high for another 30 seconds.  Water should be around 130 degrees (cool or heat more if needed).  Dump out bread pan and dry.  Bread pan should now be warm to the touch but not hot.  Make sure mixing blade is installed and add water / butter mixture to the pan.  add 2 Tbs sugar and 2 tsp salt to the water in the bread pan.  Add on top of that, 4 cups all purpose flour.  Make a small hole, not too deep, into the top of the flour in the bread pan.  Add, into the hole, 1 packet highly active yeast (2 tsp).  Place bread pan into bread machine and select dough cycle.  Start machine.  Should take 1 1/2 to 2 hours, depending on your machine.  When complete, dump dough out onto lightly floured surface and punch down.  Preheat oven to 400 degrees.  Divide dough into two parts.  Each part is one pizza crust.  Stretch, roll, hand toss, whatever works for you to get the dough to the size of your pizza pans.  I put a light coating of olive oil on the pizza pans then place dough onto them and let rest for 20 minutes to rise.  Coat with your favorite pizza sauce (we buy a jar from the supermarket).  Add your favorite toppings and top each pizza with 1/2 pound of shredded mozzarella cheese.  Bake in over for 14 -16 minutes or until cheese has browned sufficiently.  Remove and cut into slices with a pizza wheel.