Here is my situation: I have 2 pairs of speakers and one pair has a subwoofer. Each pair has 1 3.5mm jack. Both of the jacks are plugged into the back of my mobo. I have the pair without the subwoofer in the cneter and the pair with the subwoofer on the edges of my desk and the subwoofer under. The computer recognizes everything and when doing a sound test everyhting works fine. I have them configured the same way they are on my desk when I configure the speaker in Audio devices. It is a 5.1 Surround Sound with the center disabled and also the sub woofer since it isn't a separate device. When I go to youtube and play a video only the 2 speakers in the middle emit sound and also whe i play music. what do i do to make all of the speakers work? I will answer any questions asap! Thank you for all suggestions!