[A4] Fogging Windows...

[Derek Pulvino]

Wondering if this is a common problem, and if so one that also has a  
common solution.

Only really notice the fogging occur when the weather gets cold (like  
down to 35-Fahrenheit or so), with any precipitation making it  
worse.  Most accumulation is on the edges of the windshield, tops of  
the front windows, and pretty much all of the rear windows.  I'm not  
aware of any leaks in the car, and I've got the climate control set  
to Auto, Econ off.  Didn't get any faults with the CC in running a scan.

So, any ideas?

dp