Can't obtain write permissions on my file...

[Axelle Apvrille]

Hi, 
I've got a problem concerning file permissions between
CygWin/Windows and Unix.

1. I've checked-out a file on a Unix server (my login
is axelle): 
colibri{axelle}[/home/axelle/papers]> ls -al
total 160
drwx--x--x   3 axelle  nss          512 Feb 15 16:58
./
drwx--x--x   9 axelle  nss          512 Feb 11 17:12
../
drwx--x--x   2 axelle  nss          512 Feb 15 15:23
CVS/
-rwx-wx--x   1 axelle  nss         7995 Feb 15 16:58
isse-xml.tex*
=> I've got read & write access to my file
isse-xml.tex.

2. and then try to access it from Windows, using
Cygwin.
{Administrator}[/e/axelle/papers]> ls -al
total 77
drwxr-xr-x   1 Administ None            0 Feb 15 16:58
.
drwxr-xr-x   1 Administ None            0 Feb 11 17:12
..
drwxr-xr-x   1 Administ None            0 Feb 15 15:23
CVS
-rw-r--r--   1 Administ None         7995 Feb 15 16:58
isse-xml.tex
{Administrator}[/e/axelle/papers]> id
uid=500(Administrator) gid=513(None) groups=513(None)
=> Okay so I'm Administrator, the permission access
rights are rw-r--r-- : so I should have read & write
access to my file ?
=> BUT When I load the file through Emacs, it's
non-writable ! Why ?

If I check-out the file directly through Cygwin, then
I have read & write access.. 

What's happening ? How can I solve that problem ?
Thanks,
-------------------------------------------------------

Axelle Apvrille 


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