The 161-4 error is normal - that is something that would have had me thinking we had a problem if it where not for the instructions the customer pulled off of the Tivo site. I have no idea what it means, but apparently it's nothing to be concerned about. One problem I know that affects the TIVO is how much pressure Techs are under (across all MSOs) to get in, fix it and get out. Many of them will check their signal levels, not see an obivious problem and blame the box / modem / hardware. Course 95% or more of this equipment is fully functional and it will wind up a repeat trouble call. Things like occasional resets and specific channels causing unusual activity (like in my case jumping to the cable card screen) are hard to get resolved if they don't happen while the tech is there and if they can't find any other problem they tend to think it was just a bad box. This isn't to say they don't know what they are doing, most of them know their craft very well - but like any other diagnostic (car mechanic, or in my case computer repair) often if you can't get the problem to happen, you can't figure out what's causing it. My best suggestion on issues like that is to keep a notebook near your prefered viewing spot and track your issues, get times, dates and errors as well as what channel you where on when it happened. You may want to call Tivo first and see what they think about it, because our techs won't - They support the card, not the box, so if your box is doing something wierd about all they can do is check for obivious signal issues or change cards. I'm learning alot about the "jumping to cable card status screen" issue now, Tivo is replacing the box again for the customer and I'm going to put two new cards in this box (as the old one started resetting randomly in additon to the cablecard error) and use the old one at my desk for a few days to see what I can find out - when and where it's happening. With luck I can narrow down the list of possibilities and find what is driving that TIVO crazy! The biggest thing I can say about anything with a cable card is generally once it's up and running well, it tends to stay that way!