Motorola DVR + Scheduled Recordings Problems

Archived from groups: alt.tv.tech.hdtv (More info?)

Hope somebody maybe able to help or has some troubleshooting ideas!

I am experiencing playback problems with my Motorola DCT 6412 digital
cable and high-definition receiver with a built-in DVR through Comcast.
I have a Sony 34' widescreen HDTV.

What happens is that when I playback recordings that the tone vanishes
and the picture shifts every 5-10 seconds. Very annoying and the
program is essentially unwatchable. It started about a week ago and
there were even some minor problems when I was watching the live feed
starting over the past weekend. It was less pronounced and only once in
a long while.

I just had a Comcast Tech out tonight and he checked the connections
(box/TV), the main connection in the basement, and the signal - no
problems! Finally he exchanged the box. He hit record on a live show
and it worked! When I playbacked two scheduled series recordings later
that night the same problem as before occured! As much as I
experimented so far there seems to be no problem with the playback when
I just hit the record button on a program I'm currently watching BUT
any future single event scheduled recordings and series recordings come
up with the same problem.

Any advice??? I have another Comcast Tech coming out on Friday. The
one from tonight seemed pretty puzzled so I'm not sure what to expect
from the next one!