Hello, I've connected the front audio panel output for my headphones. I know that when doing so the rear speakers should be disabled automatically but in my case they still work. I hear the sound in both the front headphones and the back speakers in the same time. How can I fix the problem so when I plug the headphones in the sound of the speakers is disabled and only is activated after I unplug them? And also there is an annoying noise from the earphones when I plug them in even when not playing sound. (They're perfectly fine on stereo-systems so It's not a problem of the earphones but rather of the front audio connectors). * I have an Asus motherboard and I've configured AC'97 pin definition according to my manual. Thanks in advance for any suggestion.