Sorry, I was mistaken. My bp-version infact IS 1.2.5.2.
But I cant’ find any .htaccess-file (Cyberduck-Options is to _show_ any “.”-files.) Neither can’t find any with my provider’s explorer-tool, too.
Did start some trouble-ticket to my provider, will wait what he tells me. Wasn’t shure wether I should create any such files and what to write in.
Thank’s for feedback! Thomas