Just bought new hp pavilion a1560n and I plugged it all up and starting talking on skype via a logitech headset. Everyone says they can hear what ever sounds my computer is making, be it music, games, or beeps from AIM. I'm pretty sure it has to do with the fact that my soundcard is integrated, somehow it's mixing my mic with my speaker sounds... But I did test playing music with my mic unplugged and my friends said they can still hear the sound of the music. Anyone got any ideas or tips to help my problem?

I actually have no idea.. lol but I would like to add that my sound card is external and cost me a room full of bright pretty pennies (a little anger talking through-lol), but I hear my computers garbage noises in my headphones all the time.