> > SERVER:LW:\PATH\FILE.GDB
> >
> > > When connecting via network with a string like

Server:d:\Folder\file.gdb

>
> where is the difference except uppercase?

Harald tolds you TIB_Connection.DatabaseName (includes server name) and you
was referring to TIB_Connection.Database (w/o server name). You should also
re-read postings of Lester and replies of Jason carefully. This may help in
your "very special" trouble case...