I have been specifying a security system using the A5V10 security options.

Everything was working ok until i assigned permissions to various groups. The permissions seemed to work & when i logged in as users of the various groups the expected permissions were in place.

so... what's the problem?
The problem is; I cannot assign a user to a different group. I can create a new user or group but i cannot assign the new user to any group.

When i am trying to do this i am logged in as the Administrator. I do not remember limiting permissions for Administrator in any way.

Default permissions are set to each User has permissions and if not specified 'allow'.