HI! I've been using your device DR DAC2DX for a long period of time and I'm very happy with it.
Unfortunately last few days it was freezing a couple of times and today it's recognized by Windows 8 64bit as a "USB AUDIO DEVICE" and it's not working anymore. All leds on device are in same condition as they were when it was working.
Inside driver information is:
This device cannot start. (Code 10)