It might not alwayes be possible to detect the right screen mode. You can therefore overwrite the detected screen dimensions by setting the options below in the "fob.ini" file in the root directory of Fields of Battle: FORCESCREENWIDTH set screen width FORCESCREENHEIGHT set screen height FORCESCREENCOLORS set number of colors If for example you have a screenmode of 800x600, 256 colors, but Fields of Battle can't detect this mode, then you can set the options as: [QuickEnvironment] ... FORCESCREENWIDTH=800 FORCESCREENHEIGHT=600 FORCESCREENCOLORS=256 ... Be aware of that Fields of Battle only runs if you have 256 colors or more. However, with the options above you can force Fields of Battle to run under 16 colors by setting FORCESCREENCOLORS=256 even though you only have 16 colors; it simply won't be a pretty sight!