File Permission errors

I have a tidy NWSB v4.20 SP8 site running 8 identical PCs (W98,
Client32
v3.1 SP2)

One PC keeps getting "File Permission" errors when saving existing
Word
documents (on the server). Only difference between this PC and the
others is that it has Ms Office Professional 2002; the others have MsOffice Small Business 2002.
I have put on the Ms Office Service packs (SP1 & 2) and all W98
patches.
The PCs were cloned when originally installed last year, so they
really
are very identical!
If they save to another folder, a different name, it works...Then they

work quite happily for another 2 - 4 weeks.
Any idea's? I was contemplating Client32 v3.32 but v3.1sp2 has been
very
good.

Geoffrey Mills
--
DataSure Management Systems Limited Fax: +64 9 3066030
Auckland, New Zealand Tel: +64 9 3098540
http://www.datasure.co.nz Mail: gam@datasure.co.nz