Cable Card Tuning Adapter

Just curious what some of the issues are that keep me from getting any digital stations.  The error message I get is "This channel is not authorized, contact service provider"

I have an MTR 700 with a cable card on my TIVO...the card is paired, the tuning adapter IS wired correctly. When I called customer support, they said replace the tuning adapter, so I did at the convenient COX store nearby.  I called tech support again to tell them I needed the new equipment activated and got nothing but attitude.  The rep said they would have to roll a truck and tech support to my house...in a week.  I'm disgusted with the customer service here.

I have researched this tuning adapter issue online and people have been posting the same questions with no results.

This should be an easy no-brainer hook-up. 

Anyone have some input?  I hate the standard DVR and menu system provided by COX.