see, my heater works only while im driving, and heat stops when i sit still (at a red light or something). air still blows out of the vents, it just gets hotter the faster i go. after i hit 45-50mph the heater works like its supose to. this is a pain in the ass at times. anyone got a clue?

btw i have auto-climate controls and the car's a 96 Maxima SE