Problems modifyiong view

I am trying to add columns to a view using CREATE OR REPLACE VIEW, and I am
getting the following error:

ERROR:  cannot change name of view column "descrip" to "contact_person_1"

I suppose  I can drop the view, and recreate it, but that seems to indicate
that the create or replace functionality is not functioning the way I would
expect.

Am I missing something here?

-- 
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
                        -- Benjamin Franklin