Mutiple Speaker Output not working on Vista

[Guest]

Hi,

I have a Gateway computer with 4 analog output directly connected to the
motherboard:
Output 1 = Front LR speakers
Output 2 = Side LR speakers
Output 3 = Surround LR speakers
Output 4 = Center

All my speakers were working fine on Windows XP. After I installed Windows
Vista, I get sound only from the Front LR speakers. The factory installed
sound driver is Realtek HD. I have even updated to the latest Realtek HD
driver to Windows Vista. But no sound in outputs 2 to 4. Can someone help
please.

 

[Cal Bear '66]

Have you gone to Control Panel > Sounds and in the Playback Devices window
highlighted your Speakers and gone through the options on the Configure and
Properties buttons? Have you also gone through the Realtek HD Audio Manager
options? Version 1.67 of the Realtek drivers?