OK, so i totally flushed the radiator out, and refilled it with good coolant etc. and it got SLIGHTLY warmer. so now when i'm driving to work on those shitty mornings... i can see the bottom 2 inches clearly, everything else is covered in "mist"... any other ideas? I'm not sure whether it would be the thermostat... because it does seem to be pouring some hot air out... just not enough??