I contact Comcast earlier to let them know that Caller Id was not working on one of my HD boxes but it was working fine on the other. They issued a reset signal to the non-working box and it took about 1 hr to reset. Now it does not work on either of my boxes.
I tried on both HD boxes this morning.. Tried one then 2 hrs later tried the other. The 1st unit now has Caller ID working. This is the unit that had worked last week. The 2nd unit still does not work. The 2nd unit is a newer DCX 3400 HD/DVR that I picked up at Comcast last week. The guides on the 2nd unit still do not show up (not complete anyway) but your earlier reponse indicated that it might take 24 hrs for those to completely reload.
If the new DVR doesn't start working on the caller ID by Monday, then please post back and the Comcast Corp administrator will be notified to look into the relationship of your new DVR with your account. He will get it working if it doesn't come up on it's own. There is always a few day delay on new equipment getting found on all the backend systems.