PS GPS is not following you in MACH
...
There are a few things that can cause this.
Undock computer and then restart computer and MACH. If GPS works simply redock.
DOCK GPS toggle is toggled the wrong way
GPS Switch on dock should be pushed towards the middle of the dock.
GPS Switch is locatated on the back of the dock on the right side
Barcode Scanner is taking the GPS Comm port.
Disable the Barcode Scanner if enabled
Configure the GPS Settings
You can then reenable the Barcode Reader