Klipsch 5.1 ultras

[chopperjohn]

I just got these speakers yesterday and i cant get them to work. My mobo is a nforce 2 so it supports 5.1 and i have all the latest drivers installed and everything is set to 5.1 configuration (both in windows and on the nforce driver) so they are not conflicting or anthing. All the wiring is fine that i can tell. Also i have windows xp. Is there anything i have to do in the bios or something? Any help would be great thx.