Wondering whether its my box or a widespread problem ? Symptoms: 1. No picture and sound in 1 sec "pulses" - needs box unplugged and restart 2. Displaying anything interactive (prog info etc) momentarily hangs video 3. Specific channels have jerky video - UK Gold being an example Can't be bothered to ring them up as I don't have Virgin phone these days, so not only would it take all day, it would cost me real money !