01-27-2012, 04:52 PM
When the sound is no longer playing, (make sure the youtube video or song you're listening to is still "playing") but when you don't hear sound, keep the video going and check your playback devices. Maybe it's possible that your default playback device is switching over for some reason. If you see bars indicating that your playback device has changed from the speakers over into another device in that location which you've posted a screenshot for, then that is the problem. Otherwise I don't know, i'm just posting suggestions here, but this is strange to me by the way you've worded the issue here and the events that have been going on.