title: Ajax Control Toolkit HTML Editor not displaying icons
body: <p>A couple months ago I began implementing the HTMLEditorExtender from the Ajax Control Toolkit in our application and everything was going fine.  I let it sit for a while and we migrated the application to a new TFS and upgraded to VS 2013 and now that I've gone back to finish those pages I've found the editor is no longer displaying the outline of the textbox or the images on the icons.  You can still type into the text box, but it just looks awful and I can't figure out how to fix it.</p>
  
  <p>Below you can see an example of what I'm talking about.</p>
  
  <p><img src="https://i.stack.imgur.com/bBlZk.png" alt="enter image description here"></p>
  
  <p>I've tried uninstalling AjaxControlToolkit via nuget and reinstalling it, but that has not fixed the issue (although I may be doing something wrong and not removing it completely).</p>
  
  <p>The version of AjaxControlToolkit it says I'm using is: 4.1.7.1213</p>
  
  <p>This is a .NET 4.0 web application.</p>