Our V6 box has suddenly started making a loud clicking noise. The best way I can describe it is like a dripping tap. Also, the box refuses to switch on a couple of times a week and we have to turn it off at the mains and turn it back on again. I’m an IT engineer and this sounds like the hard drive is about to fail!! Before I spend ages on hold on the phone-has any one got any other ideas what this might be? Thanks.