This is the first time I've tried to install this program on a desktop. The operating system is Windows XP. I'm able to install the software with no problem, but when I plug the Book Port into the USB port, I get the message that the USB device is not recognized. I tried all my USB ports. Any ideas?? Lindy Jones Exceptional Education Technology/Data Support Specialist 442 E. 7th Street Tucson, Arizona 85705 225-5415 or 260-2438 FAX: 520-225-5471 Check out our web page!! http://edweb.tusd.k12.az.us/computer/ <http://edweb.tusd.k12.az.us/computer/>