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Speakers not working, headset does.? - headset experts

I've recently bought a new set of speakers, but for the life of me I can not work. I'm running Vista. I make a list of what I did to try to solve the problem, and if someone can help, "please do" too.
- The speakers are in progress, and the.
- Plugged speakers in the rear and front doors. Revised Realtek HD Audio Manager to ensure both groups were at work. Were. There is currently registered to speak in green on the back.
- Controls Device Manager to see whether it is necessary to update the audio driver. No word from him, and I tried to update the Realtek, just to be safe. No update needed.
- Specialists are defined by default. Also tried in another way.
- Bluetooth is wireless USB, why can not I can test the ports, and can prove something else. Given the new speaker should not try to "at all.
This is everything you can imagine. I am far from being a computer expert, and ask if someone could offer a solution that would be very grateful. Thank you.