Hey all. I'm very new to computers. I recently bought new speakers for my Vista 64bit operation system. And i can only seem to get 2.1 sound. The speakers that i have are ''Logitech x-530 speakers. I have been doing reacherch on the internet with no problem solved. The one thing i did read was i had to enable and check the 'Speaker Fill' button on Realtek Hd Audio Manager... But i can't find the Speaker Fill option. If anybody could help me achive 5.1 sound it would be greatley appreciated 
Thanks you
Kal0002.

Thanks you
Kal0002.
Then it is either, as Stormy shows without the RealteK software, (it might also be marked Virtual Surround). Or with the Realtek software see the Diagram.