Q: How can I make the font larger? The small size is tough on my eyes.
A: There isn't a setting in Campground Master to change that, since it just uses the Windows default font size for text. You need to change the font size or screen resolution in Windows to make text larger (it will affect ALL programs, not just Campground Master). Experiment with the Display settings/properties through Windows -- try changing the "DPI" settings, or change it to "Large Fonts", or as a last resort, lower the Screen Resolution (note that this would also affect the area available for a Map).
The specific way to get to these settings varies depending on the Windows version you're using, but start by right-clicking on your desktop (a blank area) and select "Properties" or "Personalize".
Note also that if you've done any customizations to dialogs (through Advanced Customizations), then changing the font settings could affect the arrangement of any new controls added to the dialogs (since the pixel locations of the standard controls will change).