Post #52 in this thread. MINIX - Ken said. We can't reproduce it... have you considered the chance that your unit is just a faulty one? I mean... I'm using it almost every day, if there are pop sounds, I would have noticed that for a long long time. So I would say Minix knows but as they can't reproduce the issue it's kinda hard to fix. I've never noticed any popping or clicking noises on my U1.