The FM750 it the same as the Trimble CFX-750. The FM750 option can be located when opening the CaseIH. However, you should be able to also use the Trimble and highlight the CFX-750 option as well. I believe the issue is where you are browsing. You should have a folder called AgGPS when browsing. DO NOT open this folder. Highlight the AgGPS and click Select Folder. This will then allow the files to populate for reading.