First time poster here looking for some help troubleshooting an ongoing issue with my MX-450. Just a little bit of background--we have a home theater system installed professionally by a local shop. Everything works (and sounds) great except the MX-450 remote that has an issue with input delay, double input, or failure to input. It consistently jumbles the inputs so badly that it takes three or four attempts to input a channel correctly, or to navigate to an item within the guide (after selecting the wrong item a few times)
This affects only the keys on the remote itself and not the macros, which function flawlessly. The macros were programmed by the installers and the system functions just well enough for them to tell me that the input issues are "normal." Somehow I don't believe that to be true, so I need a little help!
System info: URC MRF-260 URC MX-450 ATT UVERSE STB - Arris VIP2500 Denon AVR-S920W
