I received a set of smaller headphones for Christmas with the two jack plugs, one for the headphones, the other for the microphone attached to the headphones. I plug them into the proper connection on my laptop and nothing, the sound does not transfer. Here is the dilema, I have a set of headphones with a USB plug and they work fine, as soon as I plug these in, it switches the sound over immediately. I tried another set of headphones with the jack style and they do not work either. I tried everything I know even by going into Control Panel>Sounds and switching to Headphones, Apply and Save, restarting the computer after changes, nothing seems to work. Does anyone know what the problem may be ?