Realtek audio driver: audio management, more than one device.

I have two output devices, Logitech speaker set that came with my pc and a recently bought pair of sharkoon xtatic5.1s, My motherboard has 2 audio outputs, Coaxial and normal jacks, my problem is that my current piece of software Realtek audio manager doesn't recognize the fact taht i have the coaxil in, although im getting 5.1 sound through the hedset, the manager isnt allowing me to change any options or anything. A very confused post I must agree, but the question is this can I just change driver and continue and if so what software will allow me to do this. thanks