I save to backup every time I shut the monitor down. It's kind of hard to diagnose from here. I do know Case Farmer is talking about the new style touch screen monitor which is not the same as ours. Does the card fire up and say battery goodIJ Are you set to log data to cardIJ Change your lower left display to weight. Does it add up as you goIJ Is your stop height set properlyIJ Is your area count switch (lower right) turned onIJ Have your box or sensor calibrations changed without being told to do soIJ What about the voltage numberIJ I'm assuming we now have the GPS all straightened out with the DG showingIJ Sorry, but you'll not be able to do maps without the GPS data which will only be on the card. Your fields, loads and weights should still be in the monitor unless something has gone really amiss!