Sometimes when the NMEA compatible GPS is connected via COM port, the mouse starts jumping all over the screen. this happens because Windows recognizes the GPS as a computer mouse. 

To solve this issue we use the NoSerialMouse software that tells the Windows that the attached device is not a computer mouse. 


1. Download the attached executable file

2. Run the NoSerialMouse.exe program

3. From the dropdown menu select the COM port of the GPS

4. Click Fix button