I have mounted a folder from my NAS (Ubuntu Server 10.4, Samba) on my workstation (Ubuntu 11.4 CIFS) and everything works fine, except MS Office 2010 can't save to that folder. I see Word creates a temporary file and then it asks me for a new file name. Excel and Powerpoint do the same. There are not strange characters in the filename.
I'm afraid this is only a partial answer, but I have found mounting the same shares over gvfs works. Using gigolo to automount makes this manageable.
I have experiment with just about every cifs setting, but can't find anything to help. I'd love to have a full answer to the same question.
I have managed to make this work on my Readynas duo v2 with the following settings. My guess is that this will work on most systems with a little adaptation.
in /etc/frontview/smb.conf.CIFSFS I added:
in /etc/frontview/Shares.conf I have the following (I don't know which bits, if any are important)
I mount the share using: