What happens is a user has tried all of the COM ports and still can not get communication between the PC and GPS?
The Windows version of the GPS Database Loader program should automatically detect COM ports. If he or she is using the DOS-based Netload program, it is important to first make sure the cables are connected correctly. Users should shut down and reboot in DOS mode. The Netload software will not function properly in a DOS window or shell. Netload can only be used on DOS-based computers, version 3.3 or higher, and Windows 95/Windows 98 computers by selecting ?Start? and ?Restart in DOS mode.? Otherwise a user must use the GPS Database Loader program. If a user isstill having communication problems, his or her PC could have its COM ports disabled in DOS mode (this is more common in laptops, particularly with IBM Thinkpads, than desktops). Users can contact the PC manufacturer for information on enabling COM ports in DOS mode.
