How do I get Dell Webcam Central to work on my built in webcam?

I am on Dell Webcam centrl, and it says "Please plug in asupported webcam". My laptop has a built in wecam. How do I get it to work?|||If your using a different webcam other than the built in one then unplug that webcam and unistall the webcam software. There should be a setting in the webcam centeral that say use this webcam (or something like that)