Jochen,

Grusse Dich! Ich habe Jahrenlang in Bonn gelebt - nur eine Stunde von Aachen!
In regard to display issues: pls. try to upgrade your nVidea driver - it usually solves the problem. I have nVidea GEforce 8600 GT and have just upgraded the driver - it makes all the difference.
In regard to problems with getting things right:
we are about to release a new version that has some significant improvements - it's a free upgrade to all FS users.
Laslo