If after you have digested what is below and still find yourself pickled; then please update here with your findings and then maybe we can pick apart the trouble.
		
		
	 
 
I left all the stuff as "N/A" because this is a home LAN and in any case I put permissions on files and directories if something needs to be kept more private.  I do want the behavior of the share to use the permissions of the specific user doing the sharing.
 
The Readonly box is not checked, so I expect the web front-end will update whatever files are necessary to accomplish read-write sharing of the nominated directory.
 
What's interesting is that I can, from the Windows machine, 
create empty files, even though I get an error.  When I tried to write a non-empty file, I still got an empty file created and an error message.
 
Now here's something odd:
Code:
Local    Remote                                Properties
-------------------------------------------------------------------------------
S:      \\Oort\mnt\ZPool1\Sample              UID=-2, GID=-2
                                                rsize=32768, wsize=32768
                                                mount=soft, timeout=1.6
                                                retry=1, locking=yes
                                                fileaccess=755, lang=ANSI
                                                casesensitive=no
                                                sec=sys
UID and GID is -2?
 
Looking at the empty files under Windows, It tells me that Everyone can Read&execute but not Write, and the Owner, who also has Write permission, is "Unix User\4294967294" which looks like a generated name for UID of -2.  And that funny account was never created, so is not a member of the 'share' group.  Hmm, but the 'share' group has Read permissions only, so I'll also need to specify a fileaccess when mounting.
 
I tried mounting again, using the -u:username option to specify the account name explicitly.  It still gets a -2 when I list the results.
 
I also see a bunch of repetitions of this in the log:
Code:
Oct 27 03:05:42 Oort mountd[8899]: mount request from 192.168.1.71 for non existent path /HEAD Oct 27 03:05:42 Oort mountd[8899]: mount request denied from 192.168.1.71 for /HEAD
(.71 is the Windows machine)
 
When I go to Edit the NFS share in the web gui, I see that the only field that is filled in is Path.  The summary says read-only is false, all directories is false, and Quiet is false.