> The AC runs when the defrost is on so that it supplies dry air to the
> windshield... thus facilitating the defogging of the windshield.
> Personally, I like the feature. There must have been some designer who
> said, "Jees, I hate having to turn on the AC everytime I turn the knob to
> de-frost! Anyway to change that?"
>

Yea, such a demand on the wrist and brain!