I have a acer V3 571 laptop and recently I was changing some settings because whenever I plugged in headphones the audio would always be too low. However, after changing the setting the dolby application randomly stopped working. Usually you could see the audio levels changing in the dolby sofware but that too doesn't work. It seems as if he dolby app has gotten "disconnected" from th audio driver. I also tried changing all the settings back but it didn't work.