I am also an Atlanta-based Comcast customer and that response you were given is total BS and completely unacceptable. My two MS CableCARDs are the ONLY Comcast equipment I am using and I have had a number of service calls over the past five years without having to pay a cent (although I believe they once charged me and I had to call in to get the charge removed). You are paying for Comcast video service and Comcast-supplied CableCARDS to decrypt that service; they are ultimately responsible for maintaining the integrity of that signal. Naturally, if they schedule a service call and the tech finds the fault is with your personally owned equipment or your in-wall wiring you might have to assume some responsibility for the fix. Just escalate your issue until you reach someone with at least two functioning brain cells, but DO NOT accept the shoddy treatment you've been given so far. If customers don't persist we will all soon be treated this way.