Our DVR has been acting up recently. Late last week, when I first noticed the problems, it would frequently pause for a few seconds when watching a recorded show. The frequency of this problem seems to be increasing, and I’m starting to lose out on some of my favorite shows. Before it gets any worse, I am going to take the defective box into Comcast and exchange it for a new one. I wonder if they have new and improved versions available, or if I’ll just get a new one that is identical to what we already have. Has anyone else had any problems?