Oi.  Talk about frustrating.  I'm playing with a template right now and converting it from a dwt to a masterpage.  No big deal right?  There should be two content sections on the page.  A left column and a right column.  Everything else on the page is static.  During the design phase I'm using it for my own web site.   In Visual Studio and Expression Web I get the following error when I look at the design view:

image

Here's the HTML: (Simple Right?)

   1:  <!-- Begin Left Column -->
   2:  <div id="column_l">
   3:          <!-- #BeginEditable "content" -->
   4:                  <asp:ContentPlaceHolder ID="cphLeft" runat="server" />
   5:          <!-- #EndEditable -->
   6:  </div>
   7:  <!-- End Left Column -->
   8:   
   9:  <!-- Begin Right Column -->
  10:  <div id="column_r">
  11:          <!-- #BeginEditable "sidebar" -->
  12:                  <asp:ContentPlaceHolder ID="cphRight" runat="server" />
  13:          <!-- #EndEditable -->
  14:  </div>
  15:  <!-- End Right Column -->

Huh? They don't have the same IDs. What can this error mean?  When I delete one of the content place holders it shows everything perfectly.  But here's the kicker.  When I view the site in a browser with both content place holders it works fine.  This is totally annoying. 

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