Hi Gerhard,
I'm not looking all topic on the forum everyday, and as you are a PRO user, you can contact me by email
I don't see the link in the menu. (no published link to iCagenda...)
And no problem of compatibility with MaximenuCK, as i used it with iCagenda on many website
So, it may be something else.
We will contact by email, to solve your problem as soon as possible!
Lyr!C