[Samba] charset - big problem - 3.0.4

[juliano]

This problem runs over 1 (One) complete year. Im getting crazy with 
this. Please, i ask for help here.

Server: RH 9.0 + Samba PDC 3.0.4  + LDAP
Clients: WinXP  (SP3)  Brazil - Portuguese ABNT2

Everything works fine here. My server uptime is 4 months now... 
Everything works perfectly, but:

When i restart samba daemon (/etc/init.d/smb restart) i lost all files 
accent charsets. File names become a totally mess for WinXP clients.

Notes:

1) If I never restart samba the problem never occurs.
2) WinXP save and read files correctly, there are no problems. The mess 
is only when restarting smbd/nmbd
3) All accent files change their names, including windows profiles files 
causing a big mess...

----------------------

smb.conf

unix charset = LOCALE
display charset = UTF-8
dos charset = UTF-8


i18n
LANG="en_US.UTF-8"
SUPPORTED="en_US.UTF-8:en_US:en"
SYSFONT="lat1-16"

----------------------

Questions:
This is a recognized samba bug from 3.0.4 ?
What  can i do about it ?

Cheers, Juliano Krieger.