I'm in the process of trying to setup my 722. I'm at the Installation Summary screen and Satellite Input 1 is giving me a status of Reception Error. At first I thought I got a bad DVR, but then I connected the satellite cable directly to input one and re-ran the test...and everything showed to be good. So I'm thinking I might have a bad separator. Can I pick-up a new one at Radio Shack, will it void the warranty if it's not a Dish separator? I tried to activate it with one tuner connected (tuner 1) but it didn't seem to like that. I'm dying to see this DVR in action. Does any body have a workaround to connecting with one tuner connected & not using a separator? or do I just have to bite the bullet and wait until I can purchase a new separator. Thanks for your help guys.: