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

I tried recording the Baltimore game since I was going to be there. Anyway when I get home and try to watch it, it only has like an hour recorded. About 20 minutes in the thing starts getting choppy and my screen freezes. It wasn't the tv, so tried turining off the box. It wouldn't do anyything so i removed the power cord and plugged it back in.

When i plugged t in, the DVR won't work (can't record shows, or pause tv or anything) and it takes literally 30 seconds to switch between stations. Sometimes the thing will freeze while trying to change channels and I'll have to pull the cord on it.

Anyone have this problem? Should I just go gt a new box?