I was able to get my system up and running Christmas day using the USB Dongle purchased in addition to the Kit. Built the example BoxBot and everything ran fine all day. Today when we got ready to build our own robot from scratch, we could not get the computer to recognize the dongle. I tried it in every USB port with the same result. Even tried changing computers with no success. I can make the wireless camera work with any usb port so I assume it has to the dongle not the computer. Looking around on the web it looks like there are lots of issues using Bluetooth dongles. Any suggestions?