I have been using Windows synchronize with Samba to allow me to work offline from my Linux box. Just recently, (I do not believe anything has changed but you can never tell what IS may have done), it stopped working with an error similar to the following (reported in http://www.mail-archive.com/samba@lists.samba.org/msg45272.html). Offline Files (\\server\user on server): Access to 'file.txt' is denied on \\server\user\my_folder. After a little fruitless googling for a solution I turned on debug logging (in SMBD) and found the following messages. [2004/10/06 10:39:00, 2] smbd/posix_acls.c:set_canon_ace_list(1776) set_canon_ace_list: conn->vfs_ops.sys_acl_set_file failed for file dir1/8000B143 (Operation not supported). [2004/10/06 10:39:00, 3] smbd/posix_acls.c:set_nt_acl(2285) set_nt_acl: failed to set file acl on file dir1/8000B143 (Operation not supported). [2004/10/06 10:39:00, 2] smbd/close.c:close_normal_file(213) anon closed file dir1/8000B143 (numopen=0) [2004/10/06 10:39:00, 5] smbd/files.c:file_free(346) freed files structure 4514 (0 used) [2004/10/06 10:39:00, 3] smbd/error.c:error_packet(94) error string = Operation not supported Some more googling indicated that there was a problem with ACL support in samba when working with Win2K and a possible solution (http://www.spinics.net/lists/samba/msg13778.html) was to disable it. I then added the following to all my shares. nt acl support = no Kicked samba (kill -1) so it would pick up the changes, resynchronized and lo and behold it worked. Hope this helps.