if ur hooked direct, that should take care of the power.
do u have an in line signal strength meter or a menu on the receiver that u can use to aim the dish? have u aimed it. if so, u may want to reaim at a different sat. the receiver should identify the sat. i have aimed at the wrong one before. the search won't find anything unitl ur aimed at a sat it recognizes.
my first response on ur outside connection is that u don't have a sat connection. however, thing have changed and if i read between the lines on other post (different thread), some are combining all inputs. would like to see one to see if that is true though.