Code for default.config below... although all I did was remove items from the supplied file until I saw the behavoir we were seeing. :-)

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
 <codeviewToolbars>
  <item type="g_start" />
  <item type="image" name="Save" postback="True" />
  <item type="image" name="Print" />
  <item type="image" name="Find" />
  <item type="image" name="ToFullPage" command="FullPage" imagename="fit" hotkey="F12" />
  <item type="image" name="FromFullPage" command="FullPage" imagename="restore" hotkey="F12" />
  <item type="image" name="Cut" />
  <item type="image" name="Copy" />
  <item type="image" name="Paste" />
  <item type="image" name="SelectAll" hotkey="CTRL+A" />
  <item type="image" name="SelectNone" />
  <item type="g_end" />
 </codeviewToolbars>
 <toolbars>
  <item type="g_start" />
  <item type="image" name="Save" postback="True" />
  <item type="image" name="New" imagename="newdoc" />
  <item type="image" name="Print" />
  <item type="image" name="Preview" imagename="bspreview" />
  <item type="image" name="Find" />
  <item type="image" name="ToFullPage" command="FullPage" imagename="fit" hotkey="F12" />
  <item type="image" name="FromFullPage" command="FullPage" imagename="restore" hotkey="F12" />
  <item type="image" name="CleanCode" imagename="cleanup" />
  <item type="image" name="NetSpell" imagename="spell" />
  <item type="separator" />
  <item type="image" name="Cut" />
  <item type="image" name="Copy" />
  <item type="image" name="Paste" />
  <item type="image" name="PasteText" />
  <item type="image" name="PasteWord" />
  <item type="image" name="PasteAsHTML" />
  <item type="image" name="Delete" />
  <item type="separator" />
  <item type="image" name="Undo" />
  <item type="image" name="Redo" />
  <item type="g_end" />
  <item type="g_start" />
  <item type="image" name="InsertPageBreak" imagename="InsertPageBreak" />
  <item type="image" name="InsertDate" imagename="insertdate" />
  <item type="image" name="InsertTime" imagename="timer" />
  <item type="separator" />
  <item type="image" name="InsertChars" imagename="specialchar" />
  <item type="image" name="InsertEmotion" imagename="emotion" />
  <item type="separator" />
  <item type="image" name="ImageGalleryByBrowsing" imagename="image" />
  <item type="image" name="InsertImage" imagename="eximage" />
  <item type="image" name="InsertFlash" imagename="flash" />
  <item type="image" name="InsertMedia" imagename="media" />
  <item type="image" name="InsertDocument" imagename="document" />
  <item type="image" name="InsertTemplate" imagename="template" />
  <item type="image" name="YouTube" />
  <item type="g_end" />  
  <item type="g_start" />
  <item type="dropdown" name="CssClass" width="70" RenderItemBorder="true" text="[[CssClass]]"
   command="CssClass" />
  <item type="dropdown" name="CssStyle" width="70" RenderItemBorder="true" text="[[CssStyle]]"
   command="CssStyle" />
  <item type="dropdown" name="FormatBlock" width="70" RenderItemBorder="true" text="[[Paragraph]]"
   command="FormatBlock" />
  <item type="g_end" />
  <item type="holder" name="insertcustombutonhere" />
 </toolbars>
</configuration>