samba - Aug 2005 - Samba 3.0.14a-2 on FC4 - Strange order of directories and files

Hi!
 
I encouter a stange behaviour with the samba directory listing.
The usual directory listing (e.g. in Windows Explorer) starts with the
directories, folders followed by the files, e.g.:
 
-->Folder
 ---> a-(sub)folder
 ---> b-folder
 ---> c-folder
 ---> a-file
 ---> b-file
 ---> c-file
 
Samba does so with ext3 shares. But with shares on a xfs-filesystem, all
directory items are ordered, eg:
 
-->Folder
 ---> a-folder
 ---> a-file
 ---> b-folder
 ---> b-file
 ---> c-folder
 ---> c-file
 
Is there any possibilty to turn off this behaviour (and stay with the
xfs-filesystem, if this is the cause)??
 
Thanks in advance!
 
Marco Br?ck