Why is my volume slider popping up constantly?


AC Question

volume slider popping up constantly

Ever since the update on my HTC One....my volume slider control CONSTANTLY pops up on my screen and the volume adjusts itself. I will turn it back down and it goes back up automatically. This is so irritating!! When I am trying to send text messages, get on fb, look at the internet etc....this volume slider pops up on my screen and prohibits me from seeing anything and I can't close it out. I have restarted my phone a gazillion times and that hasn't helped. What can I do??? Thanks!