Hi,

So one day I realise that only the front LEFT and right speakers are working on my 5.1 creative T6160. I HAE tried it on two systems and the result is the same. The speakers are fine bbecause when I plug them in front speaker outputs, they work fine. How can this e fixed?What audio source are you playing?  It's a set of speakers for SURROUND sound, the rear speakers should only output audio when the source is sending audio to them, e.g. in movies that support 5.1 surround.   For regular stereo sources like music the front speakers will be the only ones that play.Either the jack in the rear is damaged or its configured differently than the front port. When you connect to the audio jack does it ever ask you what type of device is connected with audio options?

If you do not get audio options for connecting to rear or front jacks then its likely that the jack is damaged to the rear.

If you get a POP up that asks what was connected, you can try to plug the sound SYSTEM into the line in jack and then specify that its really to be used for line out and if the port is damaged for the Green Line Out port you can redirect your sound output thru the normally input only jack. *System has to have this redirection feature for this to work this way. If you are not given a pop up message when you plug in an audio device to the audio jacks then you most likely do not have this redirection feature.