How to Switch Frame Grabbers
If you switch frame grabber types or have mistakeningly installed the wrong driver for your frame grabber, you must unistall the old driver and install the new driver. After restarting your computer, the Found New Hardware wizard will run. It will try to re-install the old driver, but you must lead it to the new, correct one. A detailed example, with screen shots, is found in How to Switch Frame Grabbers, which is a pdf document you can easily print.