My DCX3400 freezes or stutters when trying to watch all recorded programs. Once I'm final able to get back to live tv, which could take up to 30 minutes, the live tv programs now freeze or stutter as well. I have to turn off the box and turn it back on to make it stop, but it takes awhile for the box to actually turn off once I hit the power button. I have no issues if I'm just watching live tv, but if I try to pause or rewind a live tv program, then it stutters, pixelates or freezes completely. I've checked all the connections, reset the box more than once, replaced the coaxial cable and HDMI cable, but it still continues to act up. I just bought this box at Christmas, so is there a fix for this, or do I need to replace the box, is it still under warranty, because this is just getting to be very frustrating.