Wow, sorry for that. My apologies. Unintended. One of the first things starting with Joomla was indeed installing and checking some templates. Havn't done anything else yet. Joomlashine was the largest one. I suspect that one caused trouble. Makes me doubt about the switch again. I know enough about Wordpress, Joomla is new to me and seems more complex. But I'll check and keep checking the tmp-directory every now and than. Best regards / Thanks.