Ok, oddly I just tried again and I had an image but it was greyscale. Now i am trying again and I have no image again? Please can any one advise why this may be?

Hi all, new to Bandicam but have successfully captured many camcorder videos recently but now have some old VHS tapes that I would like to do. However when i go to capture it all i have is a black screen. I have audio from the VHS but no visual. I assume there is a setting i need tweak? Can anyone h...