This morning everything was working perfectly. Now my speakers stopped working and also my headphones. The only way that I can hear sound is through my monitor's internal speaker. I looked at my sound devices and it says that the speakers are working correctly and it does show a green bar move up when I test the sound out, but I don't hear no sound. I am using Logitech S120 speakers. I do hear a slight buzzing sound from the speakers and headphones. It can't be my speakers problem since the headphones are also affected. I have tried everything, but they still don't work. Any suggestions?