I just got a new computer...with Realtek HD Audio. Specifically: Realtek ALC888S. The computer has no bass. Music played through YouTube, Winamp, WMP, iTunes, or through games have essentially nothing coming out of the sub. I do have 5.1 selected, that is what my setup is. Here is the weird thing. When I plug my MP3 Player into the Line-In and play through there, the bass sounds great. When I play from inside the computer, there is none. Can anyone point me to some places to look inside the Realtek HD Audio Manager? I can't seem to find anything useful in there at all.