Had work done on my roof and temporarily removed the dish. Now I'm not pulling in the 77 bird and it appears the other two are not coming in as well as they had before. Something tells me maybe I've got the 61.5 and the 72 bird coming in on the wrong LNB's. Is this possible and maybe I need to rotate the dish 5 or so degrees to get it back into the correct alignment? I have an eastern arc dish.