There's no way an scard can turn into an mcard. They're different pieces of hardware. However, it is possible that cox downloaded new firmware to the cablecard which introduced this problem. Also, from what I've read here, I have to guess that if rebooting the tivo box doesn't restore things, then there's a second problem happening with the cards. From what I've read, this isn't the workaround. The workaround is to go to an *analog* channel. If your system has mostly digital channels, it may be hard to find one. However, most systems still have one analog channel in the cablecard channel map (even if it doesn't exist in their published lineup). I'd check the channel list on the tivo, and see if there's a PBS station somewhere in the 90s, and if so, check it on. That's likely analog. They leave this station in the lineup 'cuz that's where TV's get their TvGuide data. The diagnostics screen is one sure way to tell if a channel is analog or digital.