I know enough about computers to generally fix anything that doesn't work... but I cannot figure anything out with this. I checked to make sure a sound card was installed... It appears one is and is listed under "High Definition Audio Device," which I assume is standard on any computer. Unless that is not a name defining the sound card? I know the speakers work, they are brand new. They are on, turned up, computer not muted, speakers plugged in the correct jack... all those things most people are going to suggest to check. It has all been done. Is this likely a driver issue, or maybe something more complicated since it is a refurbished computer? I did try updating the sound driver, but it came back saying the best, most updated file was already installed... Thanks for the help!