Hi, i just bought new subwoofer, and i putted it into black 3.5jack, and i have Logitech 5.1 Speakers which i putted into green one. And problem is that if i test them with Realtek HD Audio Program. They work, but if i listen music, sound comes only to my logitech speakers. And if i put subwoofer into green one the sound comes to it. How i can use my new sub and my logitechs at the same time D: