Hardware acceleration incompatibility. Fix: Right-click the Comcot shortcut → Properties → Compatibility → Change high DPI settings → Override high DPI scaling (Application). Then set “Reduced color mode” to 16-bit (65536 colors).
: Ensure you download the user manual (usually a PDF included in the package) to understand the input file structures ( comcot.ctl ) and bathymetry requirements. comcot 1.7 download