[PROBLEM] Read only ext3 HDD with smb access

[ggmero67]

Hello everyone,

I finally post this bug after having read all (?) other topics concerning my problem without managing to solve it:
Xbian automounts my external HDD formated in ext3. Using xbmc I can read/write to it without any issue. By connecting to my raspberry with ssh, i can also rw to the disk without issue.
Problem comes when I try to write to the disk using my Win PC on the same network.

I already went to usbmout.conf and allows SHARESMB, SHARERW and SHARELT. I also went to xbmc and tried to allow "write for outside world" or something like that. Unfortunately this option wont stay active, i don't know why...
I also reinstall to xbian-package-samba...

Nothing works, and I am quite annoyed because transmission is downloading my torrents very well, but I have to launch ssh to copy them to the right folder, which is not quite handy.

PS: I have Xbian RC3, updated last week (for some strange reason i cannot update anymore)

Best regards and thanks in advance!