Hey guys. I've run into a problem with my surround sound 5.1 speaker set when I connect it to my computer. The problem is that the Realtek HD Audio Manager that comes installed by default with my soundcard detects the speakers, and if I use the test option to test all the speakers and the subwoofer, everything works fine and the subwoofer, the center speaker and the rear speakers (or side speakers) all work and give out sound. However, when I just randomly play anything, the subwoofer, center, and rear/side speakers don't give off any sound. What's wrong?