I'm trying to set up my ExpressVu and I'm locked on to satellite 82 (100% signal). The problem is that I'm not able to use it or watch any shows. When it tries to download the program data, it says it's using sat 91, but I have no signal on 91. I can't find anywhere in the menu how to change it to tell it to use sat 82. Can anyone help? If it makes a difference, I'm using an old DirecTV dish to pick up the signal. Thanks in advance for any feedback.