Assuming that the server is patched up to date because none of the other
users are having a problem, it must be a third party add-in causing your
problem. Try starting Word in Safe Mode and testing. From Start, Run type in
winword /a
and press enter. In safe mode, Word bypasses all add-ins, templates, macros,
etc. and runs in its default install state. Open a document from the server,
make an edit and try to save and exit. Does it work now?
If so, you need to check for a third party add-in that you have installed
that other users don't (or have a different version.
Terry