I have an hp laptop (not sure what model but I can find out) and neither the speakers no any type of headphones will play sound. I had been streaming tv from hulu when the sound suddenly cut out. I had looked at past answers here for this and tried a bunch, but none work. When I go into sound settings to test the speakers, an error message appears, claiming the audio is in use, but I'm not running any application that is using audio. Please help!