I found a work around, another cheap gcard installed and i'm just using the HDMI audio (which now shows stereo 2.0).
Yeah, i set mine to stereo with the 5.1, still didn't play right (only 1 channel out of 3). Turns out the Realtek driver for this Motherboard was only for vista, and a more modern one isn't actually available!
(Okay turns out the forum isn't F'ed, it just doesn't support the image uploaders i like.. haha! xD)