[Samba] Automatically changing files names

[Guy Roussin]

Hi,

I have just changed my linux samba server from 2.2 to 3.0 and now i need
to change all the file name which contain a "sort of apostrophe".
With samba 3.0, Windows does not accept  this character anymore.
It appears under  linux with ? or ^Y

I'm looking for a model of shell script which could automatically change
this character by another in all users directories !

Can somebody give me a hit ?
Thank you very much.

Guy Roussin