Actually, when you use the BU-353 on Linux, and you have "gpsd", it will actually automatically switch your device to SiRF Binary protocol. I would recommend to disable "gpsd" in order to prevent that from happening.
In order to switch your device back to NMEA protocol, you must follow these instructions on Windows:
1. Download and install this software: http://www.usglobalsat.com/store/downloads/SiRFDemo387.zip
2. Run the Sirf Demo software.
3. Connect your device, choose the correct COM port, and select the 4800 baud rate.
4. Go to Action > Open Data Source.
5. Next, go to Action > Synchronize Protocol & baud rate.
6. Then, go to Action > Switch to NMEA Protocol.
7. In the pop-up window, select the 4800 baud rate under the Baud Rate and click Send.
8. Close the Sirf Demo software.
Now, try your GPS Receiver with the GPSInfo Utility (http://www.usglobalsat.com/store/downloads/GPSInfo.zip
) to see if the problem persists.Note: Be sure and not to click on anything else in this software, as you can render your device unusable.