Doug,
After many more promptings she insists that
she un-checked that option and did click "Update Group" at the
bottom (I asked for reassurance several times.)
Have a look at the group's home page. If it says this, then she
didn't succeed:

When she clicks the blue Update
Group button, a confirmation alert in green should appear at
the top of the page:

Without watching over her shoulder
it is hard to guess where she may be going wrong. Is there a
possibility she has more than one group, and is changing the wrong
one?
Is there some bug where this Announcement
Group status won't change back, or takes a day or more to become
normal again?
I don't believe so, at least I saw no delay in my test group.
Shal
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