I just had StarChoice 530 installed today in Orlando. Everything seems to be working correctly except all non HD channels have black borders on the right and left sides. I know that HD channels transmitting a show produced in 4x3 force black bars to fill the screen. I am connected by HDMI through a DVDO VP-30 processor. Is there a setting I am missing which expands the SD channels to fill the 16x9 screen?