diff --git a/docs/lcdproc-user/drivers/hd44780.docbook b/docs/lcdproc-user/drivers/hd44780.docbook
index c203a67..86f492c 100644
--- a/docs/lcdproc-user/drivers/hd44780.docbook
+++ b/docs/lcdproc-user/drivers/hd44780.docbook
@@ -320,32 +320,33 @@ By default, the following keystrokes are generated by the different keys:
   </thead>
   <tbody>
    <row>
-    <entry>1</entry>
+    <entry>X<subscript>1</subscript></entry>
     <entry><literal>A</literal></entry>
    </row>
    <row>
-    <entry>2</entry>
+    <entry>X<subscript>2</subscript></entry>
     <entry><literal>B</literal></entry>
    </row>
    <row>
-    <entry>3</entry>
+    <entry>X<subscript>3</subscript></entry>
     <entry><literal>C</literal></entry>
    </row>
    <row>
-    <entry>4</entry>
+    <entry>X<subscript>4</subscript></entry>
     <entry><literal>D</literal></entry>
    </row>
    <row>
-    <entry>5</entry>
+    <entry>X<subscript>5</subscript></entry>
     <entry><literal>E</literal></entry>
    </row>
   </tbody>
  </tgroup>
 </table>
 
-but you can change the mapping using the
-<command>KeyDirect_<replaceable>NUM</replaceable></command> =
-configuration parameter.
+You can change the mapping using the
+<command>KeyDirect_<replaceable>NUM</replaceable></command>
+configuration option, where <replaceable>NUM</replaceable>
+is the subscript to the <literal>X</literal> in the table above.
 </para>
 
 </sect5>
@@ -424,14 +425,14 @@ To be more precise, it assumes this mapping:
   <tbody>
     <row>
       <entry></entry>
-      <entry><emphasis>X1</emphasis></entry>
-      <entry><emphasis>X2</emphasis></entry>
-      <entry><emphasis>X3</emphasis></entry>
-      <entry><emphasis>X4</emphasis></entry>
-      <entry><emphasis>X5</emphasis></entry>
+      <entry><emphasis>X<subscript>1</subscript></emphasis></entry>
+      <entry><emphasis>X<subscript>2</subscript></emphasis></entry>
+      <entry><emphasis>X<subscript>3</subscript></emphasis></entry>
+      <entry><emphasis>X<subscript>4</subscript></emphasis></entry>
+      <entry><emphasis>X<subscript>5</subscript></emphasis></entry>
     </row>
     <row>
-      <entry><emphasis>Y1</emphasis></entry>
+      <entry><emphasis>Y<subscript>1</subscript></emphasis></entry>
       <entry><literal>1</literal></entry>
       <entry><literal>2</literal></entry>
       <entry><literal>3</literal></entry>
@@ -439,7 +440,7 @@ To be more precise, it assumes this mapping:
       <entry><literal>E</literal></entry>
     </row>
     <row>
-      <entry><emphasis>Y2</emphasis></entry>
+      <entry><emphasis>Y<subscript>2</subscript></emphasis></entry>
       <entry><literal>4</literal></entry>
       <entry><literal>5</literal></entry>
       <entry><literal>6</literal></entry>
@@ -447,7 +448,7 @@ To be more precise, it assumes this mapping:
       <entry><literal>F</literal></entry>
     </row>
     <row>
-      <entry><emphasis>Y3</emphasis></entry>
+      <entry><emphasis>Y<subscript>3</subscript></emphasis></entry>
       <entry><literal>7</literal></entry>
       <entry><literal>8</literal></entry>
       <entry><literal>9</literal></entry>
@@ -455,7 +456,7 @@ To be more precise, it assumes this mapping:
       <entry><literal>G</literal></entry>
     </row>
     <row>
-      <entry><emphasis>Y4</emphasis></entry>
+      <entry><emphasis>Y<subscript>4</subscript></emphasis></entry>
       <entry><literal>*</literal></entry>
       <entry><literal>0</literal></entry>
       <entry><literal>#</literal></entry>
@@ -467,8 +468,9 @@ To be more precise, it assumes this mapping:
 </table>
 
 This mapping can be changed using the
-<command>KeyMatrix_<replaceable>X</replaceable>_<replaceable>Y</replaceable></command> =
-configuration parameter.
+<command>KeyMatrix_<replaceable>X</replaceable>_<replaceable>Y</replaceable></command>
+configuration option, where <replaceable>X</replaceable> and
+<replaceable>Y</replaceable> are the subscripts to the respective axes above.
 
 <para>
 If you only need e.g. 10 keys, leave the rest away.
@@ -813,91 +815,91 @@ The optional keypad can be connected as follows:
       <entry>D0</entry>
       <entry>2</entry>
       <entry></entry>
-      <entry>Y1</entry>
+      <entry>Y<subscript>1</subscript></entry>
     </row>
     <row>
       <entry>D1</entry>
       <entry>3</entry>
       <entry></entry>
-      <entry>Y2</entry>
+      <entry>Y<subscript>2</subscript></entry>
     </row>
     <row>
       <entry>D2</entry>
       <entry>4</entry>
       <entry></entry>
-      <entry>Y3</entry>
+      <entry>Y<subscript>3</subscript></entry>
     </row>
     <row>
       <entry>D3</entry>
       <entry>5</entry>
       <entry></entry>
-      <entry>Y4</entry>
+      <entry>Y<subscript>4</subscript></entry>
     </row>
     <row>
       <entry>D4</entry>
       <entry>6</entry>
       <entry></entry>
-      <entry>Y5</entry>
+      <entry>Y<subscript>5</subscript></entry>
     </row>
     <row>
       <entry>D5</entry>
       <entry>7</entry>
       <entry></entry>
-      <entry>Y6</entry>
+      <entry>Y<subscript>6</subscript></entry>
     </row>
     <row>
       <entry>nSTRB</entry>
       <entry>1</entry>
       <entry></entry>
-      <entry>Y7</entry>
+      <entry>Y<subscript>7</subscript></entry>
     </row>
     <row>
       <entry>nLF</entry>
       <entry>14</entry>
       <entry></entry>
-      <entry>Y8</entry>
+      <entry>Y<subscript>8</subscript></entry>
     </row>
     <row>
       <entry>INIT</entry>
       <entry>16</entry>
       <entry></entry>
-      <entry>Y9</entry>
+      <entry>Y<subscript>9</subscript></entry>
     </row>
     <row>
       <entry>nSEL</entry>
       <entry>17</entry>
       <entry></entry>
-      <entry>Y10</entry>
+      <entry>Y<subscript>10</subscript></entry>
     </row>
     <row>
       <entry>nACK</entry>
       <entry>10</entry>
       <entry></entry>
-      <entry>X1</entry>
+      <entry>X<subscript>1</subscript></entry>
     </row>
     <row>
       <entry>BUSY</entry>
       <entry>11</entry>
       <entry></entry>
-      <entry>X2</entry>
+      <entry>X<subscript>2</subscript></entry>
     </row>
     <row>
       <entry>PAPEREND</entry>
       <entry>12</entry>
       <entry></entry>
-      <entry>X3</entry>
+      <entry>X<subscript>3</subscript></entry>
     </row>
     <row>
       <entry>SELIN</entry>
       <entry>13</entry>
       <entry></entry>
-      <entry>X4</entry>
+      <entry>X<subscript>4</subscript></entry>
     </row>
     <row>
       <entry>nFAULT</entry>
       <entry>15</entry>
       <entry></entry>
-      <entry>X5</entry>
+      <entry>X<subscript>5</subscript></entry>
     </row>
   </tbody>
 </tgroup>
@@ -1068,91 +1070,91 @@ The optional keypad can be connected as follows:
       <entry>D0</entry>
       <entry>2</entry>
       <entry></entry>
-      <entry>Y1</entry>
+      <entry>Y<subscript>1</subscript></entry>
     </row>
     <row>
       <entry>D1</entry>
       <entry>3</entry>
       <entry></entry>
-      <entry>Y2</entry>
+      <entry>Y<subscript>2</subscript></entry>
     </row>
     <row>
       <entry>D2</entry>
       <entry>4</entry>
       <entry></entry>
-      <entry>Y3</entry>
+      <entry>Y<subscript>3</subscript></entry>
     </row>
     <row>
       <entry>D3</entry>
       <entry>5</entry>
       <entry></entry>
-      <entry>Y4</entry>
+      <entry>Y<subscript>4</subscript></entry>
     </row>
     <row>
       <entry>D4</entry>
       <entry>6</entry>
       <entry></entry>
-      <entry>Y5</entry>
+      <entry>Y<subscript>5</subscript></entry>
     </row>
     <row>
       <entry>D5</entry>
       <entry>7</entry>
       <entry></entry>
-      <entry>Y6</entry>
+      <entry>Y<subscript>6</subscript></entry>
     </row>
     <row>
       <entry>D6</entry>
       <entry>8</entry>
       <entry></entry>
-      <entry>Y7</entry>
+      <entry>Y<subscript>7</subscript></entry>
     </row>
     <row>
       <entry>D7</entry>
       <entry>9</entry>
       <entry></entry>
-      <entry>Y8</entry>
+      <entry>Y<subscript>8</subscript></entry>
     </row>
     <row>
       <entry>nLF</entry>
       <entry>14</entry>
       <entry></entry>
-      <entry>Y9</entry>
+      <entry>Y<subscript>9</subscript></entry>
     </row>
     <row>
       <entry>INIT</entry>
       <entry>16</entry>
       <entry></entry>
-      <entry>Y10</entry>
+      <entry>Y<subscript>10</subscript></entry>
     </row>
     <row>
       <entry>nACK</entry>
       <entry>10</entry>
       <entry></entry>
-      <entry>X1</entry>
+      <entry>X<subscript>1</subscript></entry>
     </row>
     <row>
       <entry>BUSY</entry>
       <entry>11</entry>
       <entry></entry>
-      <entry>X2</entry>
+      <entry>X<subscript>2</subscript></entry>
     </row>
     <row>
       <entry>PAPEREND</entry>
       <entry>12</entry>
       <entry></entry>
-      <entry>X3</entry>
+      <entry>X<subscript>3</subscript></entry>
     </row>
     <row>
       <entry>SELIN</entry>
       <entry>13</entry>
       <entry></entry>
-      <entry>X4</entry>
+      <entry>X<subscript>4</subscript></entry>
     </row>
     <row>
       <entry>nFAULT</entry>
       <entry>15</entry>
       <entry></entry>
-      <entry>X5</entry>
+      <entry>X<subscript>5</subscript></entry>
     </row>
   </tbody>
 </tgroup>
@@ -1340,91 +1342,91 @@ The optional keypad can be connected as follows:
       <entry>D0</entry>
       <entry>2</entry>
       <entry></entry>
-      <entry>Y1</entry>
+      <entry>Y<subscript>1</subscript></entry>
     </row>
     <row>
       <entry>D1</entry>
       <entry>3</entry>
       <entry></entry>
-      <entry>Y2</entry>
+      <entry>Y<subscript>2</subscript></entry>
     </row>
     <row>
       <entry>D2</entry>
       <entry>4</entry>
       <entry></entry>
-      <entry>Y3</entry>
+      <entry>Y<subscript>3</subscript></entry>
     </row>
     <row>
       <entry>D3</entry>
       <entry>5</entry>
       <entry></entry>
-      <entry>Y4</entry>
+      <entry>Y<subscript>4</subscript></entry>
     </row>
     <row>
       <entry>D4</entry>
       <entry>6</entry>
       <entry></entry>
-      <entry>Y5</entry>
+      <entry>Y<subscript>5</subscript></entry>
     </row>
     <row>
       <entry>D5</entry>
       <entry>7</entry>
       <entry></entry>
-      <entry>Y6</entry>
+      <entry>Y<subscript>6</subscript></entry>
     </row>
     <row>
       <entry>D6</entry>
       <entry>8</entry>
       <entry></entry>
-      <entry>Y7</entry>
+      <entry>Y<subscript>7</subscript></entry>
     </row>
     <row>
       <entry>D7</entry>
       <entry>9</entry>
       <entry></entry>
-      <entry>Y8</entry>
+      <entry>Y<subscript>8</subscript></entry>
     </row>
     <row>
       <entry>nSTRB</entry>
       <entry>1</entry>
       <entry></entry>
-      <entry>Y9</entry>
+      <entry>Y<subscript>9</subscript></entry>
     </row>
     <row>
       <entry>nSEL</entry>
       <entry>17</entry>
       <entry></entry>
-      <entry>Y10</entry>
+      <entry>Y<subscript>10</subscript></entry>
     </row>
     <row>
       <entry>nACK</entry>
       <entry>10</entry>
       <entry></entry>
-      <entry>X1</entry>
+      <entry>X<subscript>1</subscript></entry>
     </row>
     <row>
       <entry>BUSY</entry>
       <entry>11</entry>
       <entry></entry>
-      <entry>X2</entry>
+      <entry>X<subscript>2</subscript></entry>
     </row>
     <row>
       <entry>PAPEREND</entry>
       <entry>12</entry>
       <entry></entry>
-      <entry>X3</entry>
+      <entry>X<subscript>3</subscript></entry>
     </row>
     <row>
       <entry>SELIN</entry>
       <entry>13</entry>
       <entry></entry>
-      <entry>X4</entry>
+      <entry>X<subscript>4</subscript></entry>
     </row>
     <row>
       <entry>nFAULT</entry>
       <entry>15</entry>
       <entry></entry>
-      <entry>X5</entry>
+      <entry>X<subscript>5</subscript></entry>
     </row>
   </tbody>
 </tgroup>
@@ -1634,31 +1636,31 @@ serialLpt wiring supports a keypad. The 3 wires version supports
       <entry>nACK</entry>
       <entry>10</entry>
       <entry></entry>
-      <entry>X1</entry>
+      <entry>X<subscript>1</subscript></entry>
     </row>
     <row>
       <entry>BUSY</entry>
       <entry>11</entry>
       <entry></entry>
-      <entry>X2</entry>
+      <entry>X<subscript>2</subscript></entry>
     </row>
     <row>
       <entry>PAPEREND</entry>
       <entry>12</entry>
       <entry></entry>
-      <entry>X3</entry>
+      <entry>X<subscript>3</subscript></entry>
     </row>
     <row>
       <entry>SELIN</entry>
       <entry>13</entry>
       <entry></entry>
-      <entry>X4</entry>
+      <entry>X<subscript>4</subscript></entry>
     </row>
     <row>
       <entry>nFAULT</entry>
       <entry>15</entry>
       <entry></entry>
-      <entry>X5</entry>
+      <entry>X<subscript>5</subscript></entry>
     </row>
   </tbody>
 </tgroup>
@@ -2579,7 +2581,7 @@ This can be done by specifying <option>--enable-drivers=all</option> or by inclu
           ISO-8859-1 than standard HD44780s.
 	</para></listitem>  
 	<listitem><para>
-	  <literal>sed12780f_0b</literal> is for some SED 12780F displays.
+	  <literal>sed12780f_0b</literal> is for some SED 1278 displays.
 	</para></listitem>
       </itemizedlist>	  
       You only need to set this parameter if you have a non-standard
@@ -2830,7 +2832,7 @@ This can be done by specifying <option>--enable-drivers=all</option> or by inclu
   <listitem>
     <para>
       If you have a keypad you can assign keystrings to the keys.
-      See the section on <link linkend="hd44780-connections-keypad">keypads</link>
+      See the <link linkend="hd44780-connections-keypad">keypad section</link>
       for used terms and the section on the specific connection type how to
       wire it.
     </para>