after a lot of updates i tried to log in as oxadmin, but what happend? wrong password.

I've tried every password ever used, but nothing.
so, i have no plan anymore.

I searched the internet and found this thread -> http://forum.open-xchange.com/archiv...hp/t-4795.html

but it won't work, I have the same problem as the user at the end of the thread.
i always get "Authentication failed"

What can i do to reset the password, because i need to add a new user.