[Samba] Snow Leopard and Samba

[jjrowan]

A customer has an expanding number of Mac computers.  Last Friday and 
existing machine started having problems writing files to a Samba share 
on a CentOS 5.x server.  They had no problems prior to Friday.  They are 
getting permission failure errors in creating files and folders.  I made 
the sare owned by the user and group with group write enabled.  Even 
with him as the owner he can not write to the share.  I stopped / 
started Samba, same problem.  I had him reconnect, same problem.  Even 
had him reboot his Mac but problem persists.  I ran Wireshark traces but 
the session generates 30 to 40 thousand packets and I am unable to find 
the packets that might pinpoint why he now has problems writing to the 
server.   I just ran a yum update of the CentOS server and it downloaded 
samba-common-3.0.33-3.15.  I don't know if this release fixes my 
problem.  Has anyone else had problems with OS/X writing to a Samba 
share AFTER it's been working for for a while (in my case 2 months)?