WTF Batman, I purchased a Logitech x530 setup cause I heard they were a screaming bang for the buck. Well they sound terrific so far but I found something thats lefty a real nasty taste in my mouth. When I plug my headphones into the main speaker jack, I CANNOT control the volume with the knob? It stays at a constant volume no matter what I do? Huh???? How is this possible? Have I got my Audigy 2 screwed up somehow or is this what I get for spending on a cheap 5.1 setup? Anyone got any incite?