Dcoument Locking

I tried to disable the option “Document locking” on one of our database but I always receive the message telling me that the document is currently open by somebody else.

How can I really disable this option ?

Subject: Re: Document Locking

You might find the information in this technote helpful. Toward the bottom it tells you how to unlock a document.

http://www-01.ibm.com/support/docview.wss?uid=swg21100606

Subject: Document isnt locked

My problem is not how to unlock one document but I disable the Document Locking in the database properties and the document locking is always enabled.

Subject: Is this Database level locking or Server level locking ?

There are two ways that Notes will “lock” documents.

Database document locking is activated at the database level, and uses a cental mechanism that your database replicas will communicate with to register locks. This allows locking across database copies and servers.

Server locking is activated at the server level, and automatically applies to all databases on that server. It prevents two people from editing the same document in the save server copy.
I don’t know if there’s an op-out for specific databases that could be applied here.

Apologies for not knowing the precise terms that Notes uses for these two methods. I tried searching the Admin help for additional details, but could not see anything obvious.