Logitech Z560 4.1 only FR speaker working wih Realtek HD

[Clemenza]

Hi there...
So yesterday I bought these quadrophonic speakers from a friend. The problem is, that only front right is working (everywhere- in test, windows sound, music, games etc.)... I thought that the other speakers might be bad, switched them but no- now when the FR speaker is the different one, it is still working and the others are not... I plugged the green wire in the green socket, the black one (rear) in the black socket, confirmed it in the realtek manager (front speakers, rear speakers)... I tried setting it to other mods (5.1, 7.1), it´s the same, only front right speaker is working... I downloaded the newest driver (2.52 or whats the newest one) both from gigabyte and realtek...
When I plug the green wire in my notebook headphones socket, both speakers work ok (I have w7 ultimate on my notebook to, but the sound card is not realtek hd)...
Can anyone help me?
Thanks...

 

[Zoik]

Logitech Z560

Did you ever get this figured out? I have the same Realtek Audio chip on my board and the same speakers..they are 4.1 right? Anyway.. Only my front left is working and all other slots wont work. I get a little sound out of my right but barely enough. The speakers worked fine in my old computer which had a Soundblaster sound card. I tried plugging my black wire in the orange port because the manual says its for subs...but same results.