HELP -- Has anyone experienced this bizzare problem? Each night at approximately 7pm the infrared remote control quits working and it stays that way until about 9:30am the next day. Dish has sent two remotes thinking that was the problem. Last week finally a technician was sent and he swapped out the DVR722 and also left a new remote. Of course when he came it was during the day and everything worked okay. That evening the problem still was still there. The DVR receiver is only about 7 feet from the remote and there is nothing blocking the signal. We are at our wits end trying to resolve this. Does anyone have any ideas?