We have several Nomads running WM 6.1 and Fw Mobile is running fine. Have you ever called our Support Department about these units. I suspect the problem is in the Sat Viewer program that determines what type of GPS the internal is outputting. Make sure Farm Works Mobile is closed. Then open SatViewer. Select the GPS tab. Select the Restore Defaults. Then verify the Dot is by the NMEA option. Tap the Apply button to save these changes. From the same GPS tab, select the Connect to GPS. You can watch the Sky tab and the Data View tab to see when connecting to enough satellites to get data flowing. Once you can confirm receiving 3 or more satellites tap the Disconnect GPS and close SatViewer. Then open Mobile again. Select the File Menu - GPS settings. From the Comm Tab, it should be Com2 and Baud rate 9600. If you still have trouble, then please give our Farm Works Support staff a call at 800-282-4103.