Tewchnically, the user should have Manager access to their local replica. If this is the case.they should be able to see all of the documents in their local replicas. Once the user has been removed from a group, he will no longer be able to see the documents on the server, and he will no longer be able to replicate with a document on the sever, even though he has a copy of he document locally. I would check to see what access you have granted the user to his local replica.