We used to have a windows server (2K3) which is now a Ubuntu file server (samba), and all the files in other shared folders seem accessible and editable, apart from the ones in the outlook archive. They are actually accessible (browsable), but Outlook (2010) cannot "accessed" them once used as a data file.
It looks to me that it could be linked to the fact that the previous permissions related to our domain are not copied over because the new ubuntu server is not integrated into our domain but only in a workgroup (we don't really need specific rights for the shared folders on this server, so I thought it would be simpler to set up like this).
As well, even a chmod 0777 * and a chown nobody.nogroup * in the outlook archives folder does not set Everyone to Full control in Windows 7, what else could I do?