Dear Neal,  thanks a lot for your help.
Yes, I did.
On the tool side of my ACE, I don´t have the option to check for updates. The three planes do not appear.
On the fleet page I can´t choose VC, cabin and wing view - only
winglets.
In the meantime (yesterday) I had more success with a landing when entering ILS frequency and course in manual mode.
The VNAV speeds only work when I enter them in mach speed, but not in knots.
Thanks again and kind regards....Markus