Whenever I start Arx Libertatis, the screen goes black and the error message "Analog input cannot display this video mode" is displayed. Ctrl +alt + delete won't work, nor will alt + tab, and even if I put the computer to sleep and start it back up again, the message remains onscreen. The only way to get rid of it is the hard start the computer.

Does anyone know how I might fix this?

EDIT: ahh, never mind. In continuing my great tradition of solving problems moments after I've posted them on the GOG foums, I managed to find the config files (in /SavedGames/Arx Libertatis) and change the resolution.