The GB Manager pertains to the older models including the Tour, Pro and Plus. There are 2 types of manager programs - 1 is G3 Manager (shows as GolfBuddy World Course Manager on your desktop or G3Mac on a MAC), the other is GB Manager (shows as GB Manager on your desktop or GBMac on a MAC). Please verify that you have the correct version of the manager program installed.Please check that the data cable is connected to the device from the wall. Please verify you have a secure connection to and from the computer.