Start as follows:
~ Make sure your LNBF is setup as UNIVERSAL (9750,10600)
~ Check the Tilt on your LNBF. To adjust the tilt go to
http://sadoun.com/Sat/Installation/S...Calculator.htm
~ Try adjusting the focal point distance of the LNBF In/Out from the dish.
~ 80% is low quality, you need to get it to 90% if possible. Are there any trees or buildings in front of the dish?