Some players expressed that they are facing resolution problems on their different size of monitors. Here are the resolutions, please follow the instructions depends on which brand of display card you are using.
Accessing Scaling Mode in AMD Radeon Settings
1)Right-click the Desktop and select AMD Radeon Settings from the menu.
2) In AMD Radeon Settings, select Display.
3) Select GPU Scaling and switch GPU Scaling to On.
4) Select the desired Scaling Mode? (Normally full screen is best for NavyField)
Similar to ATI display cards, go into NVidia control panel and find scaling, then change between the settings to find out the best one for NavyField(which normally full screen)
ATI + Intel + Nvidia Scaling full instruction : http://pcgamingwiki.com/wiki/Glossary:Graphics_card#GPU_scaling