Display Mode: Serious Sam 3 Cannot Set

The "Cannot set display mode" error in Serious Sam 3: BFE is infuriating because it stops you from playing before you even see the menu. But in 99% of cases, it is solvable. The winning combination for most users is:

The "Fatal Error: Cannot set display mode" in Serious Sam 3: BFE serious sam 3 cannot set display mode

If deleting the file does not work, or if you prefer to keep your other settings, you can manually edit the file to match your monitor's resolution. The "Cannot set display mode" error in Serious