how to test surround?

[Parrot of doom]

I bought another pair of speakers for the rear channel on my pc. The motherboard is an Asus A7N8X deluxe, it has a line out (which my front speakers are connected to), and a rear/left-right out that the rear speakers are connected to (the socket is on a separate block, but next to the line in/out/mic sockets).

I've plugged things in as the manual suggests, and indeed I get audio from them on tests and on some films.

Is there a utility that I can download that can test each speaker in turn? I'm using the Nforce drivers for the audio.

Thanks!

 

[StinkyMojo]

i tried this a while ago: http://www.nvidia.com/object/nvswap_1.0

let me know what happens