CableCARD with Sony Bravia TV

I have the TV Essentials package (analog only). Because of the Cox transition to digital only, I picked up a CableCARD and MiniBox today. I installed the cablecard into my Sony Bravia TV KDL-V40XBR1 (purchased 2006).  The TV does not support a connection to a tuning adapter and I've been told that my channel lineup doesn't use SDV in Hampton Roads.

After a few calls to very friendly and helpful customer support people (Brittney and Keegan) the card was paired using the Card Id, Host Id and Data numbers. The support rep was able to reset the card remotely, etc... However, when I try to access any of the channels, the TV reports either "No signal" or "Not Authorized".  The TV on-screen cablecard status page titled "Conditional Access" has a field that says "Auth: ?" - (which may/may not be meaningful)

Before starting another phone call, is there perhaps something with my account that needs to be updated?

(The MiniBox works just fine by the way.)

Thanks!