Prevent User from moving *ONE*, not all, DATAGRIDVIEW COLUMNS???

[Alan Mailer]

I have a DataGridView in one of my projects. I don't mind if most of
this DataGridView's columns can be re-ordered by whomever is using my
application...

BUT... there happens to be one column in the DataGridView which I
don't want the user of my application to be able to move. In other
words, that particular column's DisplayIndex value should never be
allowed to change.

So, how do you prevent one particular DataGridView column from being
re-ordered by a User?

Thanks in advance; as always.