I have a dell N5110 with Windows 7. After pairing bluetooth headphones the other day, the speakers no longer work. I have tried everything I could think of to fix it. I reinstalled the audio drivers. There is no exclamation point in the drivers and they say they are working okay. I went into the sound panel and everything looks okay but failed to test. Though I can hear the windows beep from the error. When trying a playback or trying to make a call with Skype i get playback failed. Also IDT audio program stopped working. Appreciate any help it is driving me nuts!