I have 3 Dboxes around the house, 2 have worked almost perfectly for almsot 2 years now. Very rarely needed to be as much as rebooted. I bought another one lately, but this one seems to between every 2-20 minutes freeze up - the picture and sound stutters and the sound stutter is quite high pitched and irritating. Changing channel does not work. The box needs to be rebooted. I thought this was down to the Dbox and not the signal but I notice it has started on the other Dboxes too. But on these I do not need to reboot even though the software is identical. Is this problem noise on the line and how do I fix it and why does it affect 1 Dbox over another? Thanks. I've tried almost every image going in an attempt to fix it but have had no luck so far.