Windows XP Pro SP3 client PC with latest patches.
Active Directory server farm, Windows Server 2003.
Office 2003 Word.
User editing Word document on file share, tries to save document but application gives "cannot save" error. User cannot give full description of error message but believes it mentioned "location unavailable."
Cannot then see files in the share's subdirectories... the folders can be seen, not the files. Not sure whether all folders similarly affected or only the one containing document being edited.
Log off, log on and all files can be seen in the structure.
Interestingly, even though Word was set to autosave every 10 minutes, no recovery information was available and 6+ hours of edits were lost. Offline caching was not in use for the affected file.
Network manager for site reported no switch errors. Believe that at time of "failure" other network functionality (e-mail, web) was normal.
This has happened twice in two days, on the one PC. Users on the same AD report occasional "working offline" messages when they have files in the offline cache. Similarly messages from Outlook when run in cached mode. Site firewall being blamed for these effects as it is overloaded and will be replaced.
But the sheer lack of file visibility is of concern.
Any help or suggestions appreciated.