In knowledge exchange server (6.2.2) I ticked the box against a notebook marked 'Do not allow modifications'. That caused a Java NullPointerException but that's probably irrelevant.
The problem is that I cannot now untick this box. When I do so, and click on 'Update', I get the error "You do not have permission to change the contents of notebook '****'. Please contact your system administrator."
I am the system administrator. If this operation is supposed to be immutable it needs to come with a very clear warning message that the operation cannot be undone.
Any ideas?