What is the quality differnece between DVI and VGA? If I am getting an LCD and want to run dual monitors one will be running DVI and the other will be VGA. What will the quality diff be between the ...

I was told that if you can use an analog adapter on a DVI port it isn't true digital, such that the port isn't true digital. Is that correct? In retrospect it does sound fishy that one would be able ...