One would think that there would be an obvious option in the menu to get your VIP722 to reload it’s program guide. Unfortunately this is not the case, but you can trick it.
Press menu. Go to “system setup” (6), then “installation” (1), and then “point dish” (1). Choose “check switch” and then “test”. Wait for the tests to complete. Then choose “done”. Then cancel out of all menus. Wait for the receiver to acquire the signal. Wait for the program guide to download.
The whole rigmarole takes about 15 minutes or so.