Did you recently upgrade your video drivers?
I think this is how you fix this problem:
(1) Update your video drivers
(2) Open (edit) your config.ini file for F1CC
(3) Copy the Section from Grid Size down to the end of that video section
(about 8 lines - sorry I am not near my *** box at present - It is the
last 8to 10 lines of the video settings (first section) of the INI file
(4) Paste that into each other modconfig.ini file for each of the modes
This contains the video config settings
Hope that helps
Brad