I recently learned that the Dell 5720 broadband card in my Dell D630 laptop has a GPS unit built in. The GPS was inactive by default and was turned on by setting a registry key, HKEY_LOCAL_MACHINE/SOFTWARE/Novatel Wireless/NextGenCommon/GPSHWStatus to 1. After rebooting, the system automatically detected the GPS and assigned it to COM Port 7. On Microsoft Streets and Trips 2010, I went to Tools/GPS/Configure GPS Receiver. I just selected COM Port 7 and it worked right away.