After about 18 months of daily use, I looked down last night to see the "up" button on my remote had come loose after moving to the next song in my performance. I believe I have all the parts captured but couldn't figure out how to re-assemble. Looks like the nut worked its way loose and the button, spring and lock washer basically rolled down the slope of the remote to the floor. Looking inside, there's some sort of threaded mate for it that wants to slide around the inside of the remote. Does anyone have experience with this? I will try to post pictures later today.