I have a ViP722 DTV. I bought a new 52 inch sanyo LCD tv.\r\nI connected my Tv to the reciever using the "HDMI" cable. Programed the remote to run the tv and the DISH. All is fine! EXCEPT!!!! After anywhere from a half hour to 4 hours later the remote will not let you change channels. The only thing that works is the Volume and you can turn it off.. That is it! Its acts like the reciever is locked up. I un plug, and reboot the reciever with no change. The only thing that works is letting it sit overnight. The next day it works till it locks up again. I called the folks at dish, did some remote address changes.. yet the issue remains. I plan on calling DISH tv to come and get there equipment if they wont come out to troubleshoot. Any ideas?

Can you change the channels and or use the menu button by using the buttons on or behind the door of the Receiver?

I've had a few battles with Dishnetwork myself anfd the only thing you can do, if you want to keep the service is, 1 Pay a 15.00 fee for them to come out or, 2 Ge them o the phone and they will take you through a diagnostics with you which should end up with them sending you a new receiver in abox that you will put your old receiver in adn return it to them. I paid the 15.00 fee because I refused to go throuh the diagnostics over the phone. I've had mine replaced at least three times. Other than having to deal with them over the phone, I like the service and I had even bigger problems with Directv. If you already have changed your frequencies and that doesn't work, the only other thing you can try is pulling the piece out at the bottom of remote under where it says "dish Networks" and turn it over. The piece does come out. I'm pretty sure they will not let you out of your contract so you will end up with additional fees if you drop the service.