headline says it all, randomly last night it just cut out on me and when I plugged it back in the loop back function is  non selectable, when I hit the button to go through each function it just skips the loop back function completely, does anyone know whats going on?,
I've tried the usual obvious things like uninstalling and reinstalling drivers etc but its not working at all,
(when I plug my mic in and turn it up I can hear it through the headphones plugged in the driver)
so this means it works it just won't work fully? 
 
I hope someones had my problem...