Heres my story so far. Ok I've got a new (to me, Woot referb deal) HD Tivo (software upgraded to 9.2a). I'm in the Denver area. On Friday, Comcast came out to install the CableCard in my box - they brought an M-card. The installer called in the numbers to the dispatcher, but due to some confusion, the card never authorized. The installer tried a second card to the same effect. After a couple hours he finally gave up, but set up a call for the next day to do some more troubleshooting. Saturday, Comcast calls me back, and says they got their end straightened out for the card currently in my box, and I noted from the CableCard config screens that it indeed get authorization (but maybe not complete?). The issue is it never downloaded the channel data (it had a VCTID, but no VCT packets, and the diagnostic screens said no channel data downloaded). The tivo would sit and time out on the blue-with-beachball 'acquiring channel info' screen. Comcast scheduled another installer to come out with more M-Cards and a couple single stream to doublecheck. Sunday (today) - installer comes out and pretty much gives up before he walks in the door. Says these cards don't work anyway. I was still hopeful because the tech on Saturday said the cablecard 'expert' for the area would be in to help out. Turns out he wasnt. Installer procedes to put in one single stream card - call in the numbers, but did not wait for auth on the card. He promptly gave up, put a new M card in my box (without activating it on the head end) and gave me a 'temporary' moto dvr to 'tide me over', and set up a note for the 'expert' to call me Monday. The installer (and overhearing him talk to his supervisor) said there is some nationwide issue in working with CableCards right now. I don't know if this is really true. So theres my story. I'm getting pretty frustrated. Should I call up myself and attempt to get this M-Card working that I have here now? What would have caused the issue I saw before where the card seemed to get all the authorizations, but not the channel data? If there are any tips or any other data you think I can remember or get off the card let me know. Help!