Sound Prolbems

Hello,

Ok, I know there is this same question on the site, but mine has 'a twist'.

I have an HP Pavillion Desktop, and Im having problems playing sound through my Headphones.

The 'twist' I know what to do, Ive already set the Headphones to the Default, I have them in, they play music, i take them out the speakers play, i plug them back in....

Speakers are still playing, and i dont know how to fix it. Ive tried a lot of things, but nothing is working, any help, PLEASE!