I have an MTV3700 & I'm having problems with playback. Part way through a recording, the picture distorts, the programme stops and/ or loops (repeats). I've downloaded the latest firmware and rather than have to disconnect and return it to base, anyone have any idea of a fix? I can flick forward past the glitchy area but what would cause this very aggravating issue. I'm asking on here to avoid the hassle of having to return the box to Hamilton from Auckland which effectively leaves us in the lurch pending its return! Everything is reaonably standard, big screen Sony, good reception, etc. etc.