Open Source Document Management System | OpenKM

Hi I have an interesting problem with my openkm installation.
In my installation nearly 20+ users are already working.
If I add any new user that passwords are not working
But if i change the passwords of the existing user it works.
Basically I am not able to add any new users. I am using OpenKM-4.0. on ubuntu 8.04
It is installed in vmware virtual machine.
Do somebody have some ideas or point where to troubleshoot ?

It was a bug in password users ( creation process, not in updating ) that was corrected in version 4.1.

Simply upgrade to 4.1 it's explained how doing it on wiki ( it's simple process migration is not needed ). But ensure you've got a backup before you make anything.