Don't mark up as acronym that which is not an acronym.

doc/src/sgml/pygresql.sgml

-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/Attic/pygresql.sgml,v 1.5 2001/11/21 05:53:41 thomas Exp $ -->
+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/Attic/pygresql.sgml,v 1.6 2002/03/27 19:19:22 petere Exp $ -->
 
 <chapter id="pygresql">
  <title><application>PyGreSQL</application> - <application>Python</application> Interface</title>
@@ -469,7 +469,7 @@ make && make install
    programs. You can prompt the user for a value, put it in the
    default variable, and forget it, without having to modify your
    environment. The support for default variables can be disabled by
-   setting the <acronym>-DNO_DEF_VAR</acronym> option in the Python
+   setting the <option>-DNO_DEF_VAR</option> option in the Python
    Setup file. Methods relative to this are specified by te tag [DV].
   </para>
 

doc/src/sgml/ref/select.sgml

 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/select.sgml,v 1.52 2002/03/22 19:20:45 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/select.sgml,v 1.53 2002/03/27 19:19:23 petere Exp $
 PostgreSQL documentation
 -->
 
@@ -937,9 +937,7 @@ SELECT actors.name
    <refsect2info>
     <date>1998-09-24</date>
    </refsect2info>
-   <title>
-    <acronym>Extensions</acronym>
-   </title>
+   <title>Extensions</title>
 
    <para>
 <productname>PostgreSQL</productname> allows one to omit 

doc/src/sgml/xindex.sgml

 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/xindex.sgml,v 1.22 2002/01/07 02:29:14 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/xindex.sgml,v 1.23 2002/03/27 19:19:23 petere Exp $
 PostgreSQL documentation
 -->
 
@@ -25,7 +25,7 @@ PostgreSQL documentation
     pg_amproc, pg_operator</filename> and <filename>pg_opclass</filename>).
    Unfortunately, there is no simple command to do this.  We will demonstrate
    how to modify these catalogs through a running example:  a  new  operator
-   class for the <acronym>B-tree</acronym> access method that stores and
+   class for the B-tree access method that stores and
    sorts complex numbers in ascending absolute value order.
   </para>
  </sect1>
@@ -106,10 +106,10 @@ PostgreSQL documentation
   </para>
 
   <para>
-   The <acronym>object ID</acronym> of the row in
+   The <acronym>OID</acronym> of the row in
    <filename>pg_am</filename> is used as a foreign key in a lot of other
    tables.  You  do not  need to  add a new row to this table; all that
-   you are interested in is the <acronym>object ID</acronym> of the access
+   you are interested in is the <acronym>OID</acronym> of the access
    method you want to extend:
 
 <screen>