Logitech 5.1 Speakers but sound only comes out of front left and right

[Carolina_22]

So I recently bought the Logitech 5.1 Surround Sound Speakers and I have the Biostar A880g+ Mobo with Realtek ALC662 6-Channel HD Audio and I installed everything and put the speaker configuration to 5.1, the problem is that when I test these speakers the sound only comes out of the front left and right speakers and not the center or any of the other two. I am wondering what is going on and if you can help me, I would appreciate that A LOT. Thank you.

 

[soundguruman]

You may not have the surround drivers installed from dolby labs.
You may not have dolby encoded media with surround tracks
are you playing a surround sound CD, DVD or downloaded file?
The surround has to be on the source to start with, then it plays. Regular stereo audio sources do not have surround tracks.
or the settings may still not be correct...