Anyone have this problem with Motorola DCT6416 III DVR from cox?

I have trouble recording saints games or other long events if the DVR is close to being full. Eliminate everything you don't need before gameday. I usually throw out my wife's Dr. Phil's and Oprah's on Saturday to get ready for Sunday's Saints recording. Then transfer to DVD before Monday. Also, when I've had trouble with choppy signal, etc. I've turned the unit off. Full powerdown and then back on. It usually resolves the issue. I'm using the HD DVR from Cox in New Orleans and have had very few problems with it. I was using a TIVO prior to the storm and actually the Motorola is a better interface.