Ok I have a very strange problem to do with the behaviour of a Windows 2003 Server. As soon as somebody creates a new file or folder on this server and has finished using it, we are then unable to modify the file or folder. Even the administrator is unable to modify the file or folder. This also happens on files and folders that have always been there. As soon as somebody uses a file or folder it then becomes un-modifiable. If you then restart the server everything is fine, until a file or folder has been modified, then once again it becomes un-modifiable. The only way any file or folder can be modified is after having a restart. I do not understand. Please help.