I just purchased the license for Debut Video Capture Version 3.07.
Each and every time I launch the application and I click the webcam button to try and record, it flashes the video of me sitting in front of the webcam for just a second or two and then the screen goes completely black. If I double-click in the black area of the screen, it tries to connect to the webcam again and then it shows my picture again for just a second or two and goes black again.
I had used the trial version of Debut for a long time and never had this problem and now that I paid for the licensed version, it won't even launch.