If you mean that you want to unsubscribe (receive no email but can read via web
interface, but can't post messages even via the web interface), then follow the
advice in "more information".
If you want to remain a member so you can post via the web interface, then you need
to use a browser to visit the web interface:
http://groups.google.com/group/vim_use
You have to sign in with an account that is associated with the email address that
receives messages, and click "Edit my membership" on the right.
John
LMAO at "I accidentally made a choice"
You purposefully made my day with that one.
Solution quoted above in case you missed it. ;)