Hi all, I've got an older (2013) ipac2, and haven't used it for a couple of years. The alt programming that I've saved previously still appears to be set (when accessing via WINipac). However, when trying to test the buttons or controls nothing seems to function. Just wondering if it's something simple I need to double-check (yet again) - such as grounding wire linked through properly?? To clarify furher, if the grounding wire is not consistently linked between controls and buttons, will that render all as inoperable in testing?? many thanks!