Has anyone had any problems getting one of their devices to recognized? The Harmony remote won't recognize my cable box and the apllication for learning the infrared signal won't read the signal. My TV's pre-programmed remote has the codes built in and my other learning remote learns the signal no problem. I have sent an emial to customer service but still no response. Without the cable box in the listing - this remote is useless for my wife to use. Does anyone have any suggestions?