diff --git a/docs/index.html b/docs/index.html
index c827beb84..66532ffc8 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -21,7 +21,7 @@
     <img src="graphics/stella_icon.png">
     <h2><b>A multi-platform Atari 2600 VCS emulator</b></h2>
 
-    <h4><b>Release 6.5.3</b></h4>
+    <h4><b>Release 6.6</b></h4>
     <br>
 
     <h2><b>User's Guide</b></h2>
@@ -307,7 +307,7 @@
       TIA sprites and collisions for each object separately</li>
     <li>Full system state save/load functionality</li>
     <li>Automatic save state creation ('Time Machine') which allows moving back and forth in the recorded timeline</li>
-    <li>High scores saving (internal or via PlusROMs store)</li>
+    <li>High scores saving (internal or via PlusROM High Score Club)</li>
     <li>Cross-platform UI including a built-in ROM launcher frontend</li>
     <li>Built-in extensive debugger, including static analysis with the Distella disassembler
       and dynamic analysis at runtime by tracking code/graphics/data sections, and
@@ -1996,12 +1996,12 @@
     </tr>
   </table>
   <p>Notes:
-      <ul>
-          <li>Only available if UI messages are enabled.</li>
-          <li>Currently not available settings are automatically skipped.</li>
-          <li>If a setting was previously selected via a dedicated hotkey, its
-          value can also be directly changed with the global keys.</li>
-      </ul>
+    <ul>
+      <li>Only available if UI messages are enabled.</li>
+      <li>Currently not available settings are automatically skipped.</li>
+      <li>If a setting was previously selected via a dedicated hotkey, its
+        value can also be directly changed with the global keys.</li>
+    </ul>
   </p>
 
   <p><b>Other Emulation Keys (can be remapped)</b></p>
@@ -2110,9 +2110,9 @@
       <td>Cmd + Up arrow</td>
     </tr>
     <tr>
-      <td>Enter/Exit the PlusROMs setup dialog</td>
-      <td>Shift-Control-Alt + P</td>
-      <td>Shift-Control-Cmd + P</td>
+      <td>Enter/Exit the PlusROM High Score Club setup dialog</td>
+      <td>Shift-Control-Alt + P to enter, Shift-Control-Alt + P/Escape to exit and continue with emulation</td>
+      <td>Shift-Control-Cmd + P to enter, Shift-Control-Cmd + P/Escape to exit and continue with emulation</td>
     </tr>
 
   </table>
@@ -2277,12 +2277,12 @@
     <tr>
       <td>Move cursor to beginning of line</td>
       <td>Home</td>
-      <td>Home, Control + A, Command + Left arrow</td>
+      <td>Home, Control + A, Cmd + Left arrow</td>
     </tr>
     <tr>
       <td>Move cursor to end of line</td>
       <td>End</td>
-      <td>End, Control + E, Command + Right arrow</td>
+      <td>End, Control + E, Cmd + Right arrow</td>
     </tr>
     <tr>
       <td>Delete character to left of cursor</td>
@@ -2307,7 +2307,7 @@
     <tr>
       <td>Delete all text to beginning of line</td>
       <td>Control + Home, Control + U</td>
-      <td>Command + Backspace, Control + U</td>
+      <td>Cmd + Backspace, Control + U</td>
     </tr>
     <tr>
       <td>Delete all text to end of line</td>
@@ -2337,42 +2337,42 @@
     <tr>
       <td>Select all text to beginning of line</td>
       <td>Shift + Home</td>
-      <td>Shift + Home, Shift-Control + A, Shift-Command + Left arrow</td>
+      <td>Shift + Home, Shift-Control + A, Shift-Cmd + Left arrow</td>
     </tr>
     <tr>
       <td>Select all text to end of line</td>
       <td>Shift + End</td>
-      <td>Shift + End, Shift-Control + E, Shift-Command + Right arrow</td>
+      <td>Shift + End, Shift-Control + E, Shift-Cmd + Right arrow</td>
     </tr>
     <tr>
       <td>Select all text</td>
       <td>Control + A</td>
-      <td>Command + A</td>
+      <td>Cmd + A</td>
     </tr>
     <tr>
       <td>Cut selected text</td>
       <td>Control + X, Shift + Delete</td>
-      <td>Command + X</td>
+      <td>Cmd + X</td>
     </tr>
     <tr>
       <td>Copy selected text</td>
       <td>Control + C, Control + Insert</td>
-      <td>Command + C</td>
+      <td>Cmd + C</td>
     </tr>
     <tr>
       <td>Paste at cursor and replace selection</td>
       <td>Control + V, Shift + Insert</td>
-      <td>Command + V</td>
+      <td>Cmd + V</td>
     </tr>
     <tr>
       <td>Undo last operation</td>
       <td>Control + Z</td>
-      <td>Command + Z</td>
+      <td>Cmd + Z</td>
     </tr>
     <tr>
       <td>Redo last operation</td>
       <td>Control + Y, Shift-Control + Z</td>
-      <td>Command + Y, Shift-Command + Z</td>
+      <td>Cmd + Y, Shift-Cmd + Z</td>
     </tr>
   </table>
   </br>
@@ -3282,17 +3282,14 @@
       <br>Note: Only available for Windows</td>
     </tr>
 
-    << "  -plusroms.nick <nick>        Define a nickname for the PlusROMs store\n"
-    << "  -plusroms.id   <id>          Define an ID for the PlusROMs store\n"
-
     <tr>
       <td><pre>-plusroms.nick &lt;name&gt;</pre></td>
-      <td>Define a nickname for the PlusROMs store</td>
+      <td>Define a nickname for the PlusROM High Score Club</td>
     </tr>
 
     <tr>
       <td><pre>-plusroms.id &lt;id&gt;</pre></td>
-      <td>Define an ID for the PlusROMs store (32 chars, hex)</td>
+      <td>Define an ID for the PlusROM High Score Club (30 chars, hex)</td>
     </tr>
 
     <tr>
diff --git a/src/gui/PlusRomsSetupDialog.cxx b/src/gui/PlusRomsSetupDialog.cxx
index 54f061a1b..e39af8b28 100644
--- a/src/gui/PlusRomsSetupDialog.cxx
+++ b/src/gui/PlusRomsSetupDialog.cxx
@@ -25,14 +25,14 @@ static const int MAX_NICK_LEN = 16;
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 PlusRomsSetupDialog::PlusRomsSetupDialog(OSystem& osystem, DialogContainer& parent,
                                          const GUI::Font& font)
-  : InputTextDialog(osystem, parent, font, "Nickname", "PlusROMs setup", MAX_NICK_LEN)
+  : InputTextDialog(osystem, parent, font, "Nickname", "PlusROM HSC setup", MAX_NICK_LEN)
 {
   EditableWidget::TextFilter filter = [](char c) {
-    return isalnum(c) || (c == '_');
+    return isalnum(c) || (c == ' ') || (c == '_') || (c == '.');
   };
 
   setTextFilter(filter);
-  setToolTip("Enter your PlusCart High Score Club nickname here.");
+  setToolTip("Enter your PlusROM High Score Club nickname here.");
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -