please check out the solution given by WorldofBB. I'm sure, it solves your issue. I have changed the CSS file in my forum and it seems to work fine.

/Micha

I did and it works great (after deleting the browser's history).

Thank you, shian.

P.s. When I have some time I need to install another instance of Version 2.4.23, with new SQL database, and test the Backup/Restore function, (I can't see why it did not work in my case until now).