TOSHIBA Satellite L650D PSK1NE-01500MEN laptop does not allow sound from headphones when listening to music on Youtube and similar programs. The sound works fine normally and if you listen through the headphones when testing the sound card you can hear the test sounds. The machine was rebuilt from Windows 7 to Vista when bought and I am wondering the hardware is not supported in Vista and this is why it is not working properly. Any ideas?? Thanks Clair.