Up until recently (approx 2 weeks ago) our Mysky box has performed faultlessly. I think the Mysky box was installed about two years ago. However it has now started to have sound drop outs of about one to two seconds long every 15 seconds or so. The picture on the screen is continuous with no break at all,just the sound. The Mysky box is feed to a home theater system and the LED display on the amp blips when the sound drops out. Do you think this is just due to some atmospheric conditions just happening at present or do you think I should contact Sky and get them round to sort it out. Say you tune into TV1 through sky you get the sound drop outs. If you tune  the TV direct to TV1 the sound is perfect. The sky comes in via a dish and the TV can also be feed by a UHF aerial. I have checked all the cable connections etc and nothing seems to be amiss. Any ideas please. We are the the flat in Christchurch city.