I have started having Audio problems.Nothing as changed i turned my PC off and the next day it had got no sound.When i watch ITV X Player on the adverts there is no sound but when the programme starts there is sound.All my media player works.Anything via my browser the sound doesnt work and on the bar at the top it says muted on the tab.Nothing as been changed setting wise everything is as it was before the sound stopped working .Any help would be appreciated ..TYI