just bought the xtreme from satelittesuperstore.com its tuned to astra hotbird a 1 west i think. this is my first digital reciever and ive not yet got my big dish up yet, i had only connected up to the existing dish to see how things ran. i was getting itv news and lots of shopping channels, but now i cant get them it says bad or no signal. do you think the dish is to small or am i missing something?