No sound recording

Hi there,
I ordered my 3DS with Capture Board a while back and am only just getting around to trying it out. Almost everything is working great, except that I can't seem to record my 3DS's sound with the software that comes with it! I've tried changing the audio setting from my microphone to (no audio) but my microphone is still being recorded, with no sound from the system!
Any help would be much appreciated!
I ordered my 3DS with Capture Board a while back and am only just getting around to trying it out. Almost everything is working great, except that I can't seem to record my 3DS's sound with the software that comes with it! I've tried changing the audio setting from my microphone to (no audio) but my microphone is still being recorded, with no sound from the system!
Any help would be much appreciated!