i had instaled magic jack and now my speakers are working only when i use skype and magic jack. on you tube, sopcast, and tvu player there is no sound at all. how can i fix that?
Try uninstalling Magicjack. If it works again, contact them for support.
Also check your speaker control panel to make sure that nothing is muted, and all volume controls are at least 50%
also make sure your default device is set correctly
also make sure your default device is set correctly