My client has a Windows 2003 R2 server with a share. They accessed the server with a Windows 7 Pro workstation and attempted to add files (during an install) to the share. Afterwards they had the original share and a new folder with the added content only. The new folder has the name of the original shared folder PLUS a space on the end.
Attempts to change the names of the original or the new folder, or copy the original or new folder contents result in bizarre changes, including the contents of the folders exchanging, errors claiming the disk cannot be accessed, etc.
Chkdsk does not appear to be able to see the problem, and returns no errors.