Over the past few days one of my manuals (Luke Skywalker, a black with green led, one of my two originals) has been having issues. It's button was being a pita, sometimes it would work with a slight press, other times I'd have to hit just the right spot, and others still I'd have to press hard as #$&@ to get it working. Today after it was fully discharged I dropped a little alcohol into the button, let it dry for an hour, then put it on the charger. So far it's working. I hope it continues, I'm not emotionally prepared to retire it yet....