Auto scale graphs versus Real time graphs

I have a La Crosse WS 2510 weather station. The information on the main display screen for Weather Display (version 10.10r) shows the values of the auto scale graphs and not the values displayed on the real time graphs. The real time values are correct. What are the auto scale graphs and how can I get the main display screen to display real time values? By the way the time and date values on the main screen are correct; however, the time scale for the graphs are considerably different. Thanks.