Sometimes, on some PC's, the USB cable isn't installed correctly, even though it appears to be. If it doesn't pause and have you select something in a drop down menu during the install, it's probably not installed right. I don't remember what the men said, it was too long ago. Try uninstalling the USB driver and reinstalling it, over and over again, if needed, until you see the menu. One of my PCs had zero problems, the cable installed perfectly on the first time, but on my laptop, it took hours of rebooting until it let me pick the option I needed, and once it did, the cable worked and I was able to load my Pro-96. Win500 worked great on my Pro-197.