I plugged my headphones into the jack in my new computer, for the first 2 times it showed a little pop up at the corner of the screen telling me I plugged headphones into the jack so I clicked it and it lead me to something where I picked what to use to play sound, and my headphones played sound. Now when I plug them in nothing appears and my headphones don't play sound, but the speakers do. I go to the playback devices and see that Speakers/Headphones is working but it's only playing speakers, not the headphones. Is there a way I can fix this? Please and thanks