Running the heater for the first time this year (car is only 2 months old.. BRAND NEW)(little chilly outside) and i have noticed that when you run it even on the lightest heater setting that all of the windows fog up, which obviously impairs your driving) and i have to turn on the AC to get the windows viewable.. all of this at the expense of not being able to run the heater while driving the car... is there a trick to running this heater for the first time. Please mechanics or Yaris owners only answer)