Ok,
that is the problem. Time to wait for the next fan translation patch, because the original german translation has still the same bugs/mistakes from the beginning, but no problem with the new GUIs.
Thank you for the inspiration/help.
Hello,
after installing the Patch 1.05 (and reinstalling the whole game from GoG in version 1.05), in the Option Menus i have the following bugs:
*Missing GUI 1981*
*Missing GUI 1983*
*Missing GUI 1984*
*Missing GUI ...*
*Missing GUI 1997*
*Missing GUI 1998*
*Missing GUI 1999*
*Missing GUI 2000*
Also starting/installing as administrator is the same result.
Thank you for further help.