Dish 500 installed by dish network dp twin LNB also dish300 l LNB standard, 34dp swith, softwere setup diseqc 1/119-2/110-3/61.5. can't get 110 very low quality but when scan 110 gets all channels on 110 and picure,change to 119 witch has picuthcr,go back to 110 no picure,61.5 no picure.119 works well. The receiver has the latest soft were. Please help. Thanks