I have a Panasonic digibox and have recently started having problems viewing some channels, there is very bad picture breakup and pixilation. This is mainly on the UKTV channels - UKTV Gold, UKTV food, UKTV Food +1, UKTV Docs etc - but not on UKTV People or UKTV Gold +1. The other channels that I understand to be 'weak' such as ITV2 are fine! All this happens during good weather conditions when the signal strength is around 70-80% and signal quality is around 60-70% During bad weather I've seen the signal quality fall to around 20%. What should I be looking at? Alignment, cable problems, LNB replacement, replacing the box? Any pointers would be greatly recieved as the wife's missing the food channels TIA Kev.