Today i received a new batch of MCP237017 IO multiplexer ic's. Very convenient, because the other day i fried one of them, causing a group of buttons to fail. The reason I fried them? I damaged +5V wire pulling the thing apart, after I decide there was 'no need to pull the power, it'll do fine"..
Anyway, with the new IC's in stock (10 of 'em) I'm free to tinker around with the 3rd and 4th panels, yeah the ones with the nifty backlighting. Should be a 2-hour job perhaps i'll start on it tomorrow, after I've done all the other bits that need doing.