Backend empty right after install

I just installed version 4.2.0_23610 CE and that went fine, my server met all requirements and the front-end seems to be ok. I can also login to the backend, but then its pretty empty (see attached screenshot).

Anyone who knows what’s going wrong here :confused:?

Hi!!!

Menu.xml:

Change:

<?xml version="1.0" encoding="ISO-8859-15" ?> 

in

<?xml version="1.0" encoding="UTF-8" ?> 

Regards

Cutty

Thank you very much!!