Using JoomDoc 3 / Joomla 1.6 I can't delete Documents. I checked two documents, pressed "Delete Document" and even got a positive response "Two documents deleted" - but - they are still there. By the way - I can't mark any document as "published" or "unpublished", too.

Hello,

make sure to make difference between "documents" and "files".
In the concept of JoomDOC 3, a file is a physical file/folder on your server's disk. While "document" is a meta descriptior for this entity giving it possibility for further descriptions, keywords, permission settings, versioning, etc.

Deleting a document does not delete the file self.