Creative Inspire 5.1 Digital 5700 On X-Fi



The Prince Of Babylon
Hi, I just purchased these Creative Inspire 5.1 Digital 5700 speakers with a decoder.

Now I have it plugged into the PS3 on optical, very nice I must say, although not sure why the DTS light does not turn on when I play a DTS dvd?

But, I have also connected it to the X-Fi in my PC. And I don't get 5.1 because my sound card cable is Green, Orange and Black & the decoder only has two ports for digital, there is no socket for the orange "centre speaker" cable to be plugged into!

Can anyone help me with this as I am not an expert with hooking up these sound products:confused: