That's it!
Thanks, those instructions worked for me. I set my remote to 18, and it's back to being it's "normal" responsive, and not acting up like it was. Nice find! :up
Please let me know if that makes your problem go away permanently.
As far as I am aware, this is a bug introduced in L662 on the 722k, not sure about the other DVR models. Anyway DISH needs to fix this crap as they have released new software three times while failing to, and possibly even making worse, this bug!