What Glenn says makes sense. Renames on the network space actually update the file name in storage.
If a user uploads a file via WebDAV, the default title is the document name. If a user uploads a file using the web interface and doesn't specify a title, the doc name becomes the title.
Somehow, it needs to be apparent that changing the title field in Resources doesn't change the document name. I was thinking it'd be great if we could force the title to be the documents name . .
The typical user won't easily distinguish between document name vs title.