First of all, to answer to your reply, I can hear sound coming from the center connector, which is controlled by the front speaker and the blue connector controlled by the rear speaker. This is what I had before, in a quadraphonic speaker setup.
My problem is that I believe I am not using the SoundMAX setup, but Windows system, the sound is not as clear as before and I am not able to get the Sound Wizard, that allows me to test the speakers in SoundMAX and shows that I am using it.
I have tried uninstalling and reinstalling it again, but I am not being able to get this to work. I believe I have the correct driver installed.
I accessed the Analog Devices, Inc. website, to look for updates or to download the correct driver, but the version sold with my computer is no longer supported.
If you know of another sound system that I can use, to “upgrade” my current sound system, maybe is the route to take.