Dear Si,
Sorry for the late reply since I lived in Hong Kong.
What I have done is as follows :
I re-link the helvica fonts to unicode fonts I have created,
and then what happens is :
(a) I can read and write chinese in all applications but,
( When I try to install new s/w, the error message
\"The filename of this package includes characters this application
can\'t handle. Please change the filename and retry install\".
BR,
Felix.