Uninstalled the unified drivers, and installed the official Asus ones. All my problems have been fixed! Strangely enough... Sound sounds better too... hmm...
Well the only annoying thing with the official ones is a wierd echo when I use my 5.1 headset. So stuck my headset to the onboard as I only use it for gaming. Using my other standard headphones and speakers with the Xonar so I can make full use of it when playing music/watching movies.