Kyle
Thank you for your help. It took me a while to understand that there was a zip-file in the zip-file but once I found this, installation was OK.
The language plugin for dutch was also installed and I installed the latest version of the AcyMailing plugin. So far so good.
But ... backend and frontend of this site are both in Dutch, exept for CB! In the forums I read that CB will take the same settings as for Joomla but in this case, it doesn't work like that. What is wrong?
Also, configuration settings are not copied from the 1.9 environment. It is not a big job to redo that but did I do something wrong?
Willy