the picture on my Sky digital regularly breaks up. sometimes it is completly unwatchable. i have a panasonic digibox thats about 4 years old. it has been doing this for about 1 year. i`ve been told that it may be something to do with the trees opposite my house but it used to work fine and the trees don`t look any bigger to me than they used to be and there are no leaves on them at the minute. sometimes there is no problems with the picture at all. sometimes it works on some channels and not others. from day to day the channels that work will change but it is bad most often on e4 and motors tv. the signal strength is usually about 75% and the quality is usually about 60%. the picture breaks up worse during ad breaks and when the banner is on screen. the dish is tightly secured and i dont think it has moved any. does anybody have any ideas on how to fix this problem? (cutting down the trees is not an option as they are not mine but i`ve bought a saw just in case!). thanks.