Hi, I just got my new Thomson DVR and I am very happy with it except for one thing. Occasionally the playback of recordings is 'jittery' and skips forward. I thought it might be a reception problem but it doesn't skip EVER while watching a live programme. I've recorded an hour long programme while watching it and only the recording has had the problems not the original broadcast. Could I have a HD problem or is it a known problem in the software?