Here's my doc (Word 2003):
Section 1 contains a table and a paragraph mark.
Then a continuous section break.
Section 2 contains some form fields and text.
Then a continuous section break.
Section 3 contains a table.

I protect the document, indicating only Section 2 should be the protected
section.  Sections 1 and 3 are unprotected. Tabbing through the form fields
works great in Section 2.  However, when I then go to one of the tables in
the unprotected sections and attempt to tab, I get  Runtime Error 4605:  This
method or property is not available because the object refers to a protected
area of the document.  I can, however, tab at the empty paragraph mark at the
end of Section 1 with no error, and I can edit anything in the unprotected
sections without error.

I found this article, which is also an illogical error when doing something
simple, plus my fill-in fields are already enabled, so it's only slightly
related.
http://support.microsoft.com/kb/896987/en-us

Is it just a bug?

TIA  MarieJ