Recently I started getting "brackets" in my Word docs that mark the
corners of the viewable part of the document.  They are basically just
a short horizontal and vertical lines that meet at the corner of the
viewable area.  Like this (but larger)...

+    <-- in upper left-hand corner
+    <-- in upper right-hand corner
+    <-- in lower left-hand corner
...etc.

I've looked through all settings, deleted the normal.dot file, started
Word with the /a switch and the /m switch to prevent Add-Ins and Macros
from starting.  Nothing changes.

Any ideas?

Thanks!