well, made a 2nd try, deleted all old files first. there still are 2 xml files causing errors. After I deleted these, the game loads the past sav.Don't copy over.
However, I face another problem:

I run it on Win7/64 with 8GB RAM and 4GB VRam.
This error I didn't had with former version.
How do you run this w/o grafic ram address error ?