OK maybe I was to fast, I did re-upload From the 7-6-0 archive

/languages/english/markallread.tpl
/scripts/markallread.tpl
/templates/default/markallread.tpl

and now I got this reply from the dude who complained

Quote
I now get to the 'Mark All Posts As Read' page but when I click on it, it takes me back to the main forum page but nothing has changed. The unread posts/forums are still there (marked in yellow).

Same result for both Chrome or Firefox.

Any suggestions?

Morgan Johansson
BritBike Forum
https://www.britbike.com/forums/ubbthreads.php