Does the camera and mic work on Skype?
In order for your camera and microphone to work correctly for your event, you will need to quit Skype entirely
This will establish that your camera and microphone are working correctly. However, Skype is accessing your camera or microphone while you are using BigMarker, you will need to quit Skype entirely. Other video applications (like Skype) can hi-jack your microphone and web camera and prevent BigMarker from accessing them.