Sorry guys, I was quite busy, so I come back only know.
Your advices were good and finally the resolution is fine! Thank you very much for your kin help!!!
The only minor disturbance is, that the intro is not running properly anymore.
If I start the game by double-clicking on the exe-icon, the screen turns black and the music comes, but the silhouette of the Panther-tank firing by night does not appear.
The Intro (WMV-file) is under C:\Program Files (x86)\Battlefront\Combat Mission Final Blitzkrieg\Data and still running fine, however, for whatever reason the logo does not appear anymore, if I start the game.
Any idea?
Thx, TCO