Even more strange: I killed my course-homepage-navigation bar again.
It is not in the database, I did a clean resead of the database with the same effect.
It is not in the code: I used a blind copy of another xampp implementation on the c-drive,
There it works fine under Xampp and if I copy it back to easyphp1-7 it works also normal...
I only changed the paths in config for datadir etc..
Does someone experience these problems with xampp?