Javascript error invoking spell checker

[ian webster]

When I press the spell check button in the rad editor I get the following JS error...

            <span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1>
            <h2> <i>No dictionary loaded. Set the DictionaryPath property from the spell checker settings or copy the dictionaries to ~/App_Data/RadSpell/</i> </h2></span>
            <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">
   <b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
<b> Exception Details: </b>System.ArgumentException: No dictionary loaded. Set the DictionaryPath property from the spell checker settings or copy the dictionaries to ~/App_Data/RadSpell/<br><br>
<b>Source Error:</b>
<table width=100% bgcolor="#ffffcc">
<tr><td>

I've seen various other posts on this issue and tried the following:

• Making sure the http handler is set in the web.config
• Copying the dictionary file into /App_Data/RadSpell/
• Given the 'everyone' user full access to the RadSpell folder and the dictionary file in it
• Setting the related spell checker tags in side the rad editor: 
  

  <SpellCheckSettings DictionaryLanguage="en-GB" DictionaryPath="~/App_Data/RadSpell/" />
  <Languages>
      <telerik:SpellCheckerLanguage Code="en-GB" Title="English" />
  </Languages>

  I tried Languages on it's own, SpellCheckerSettings on it's own and also both of them together
• I've tried programmatically adding the language on page load...
  

  txtDescription.Languages.Add(new Telerik.Web.UI.SpellCheckerLanguage("en-GB", "English"));

The project doesn't use any kind of url re-writing, it's asp.net 4.0 and I'm using the very latest version of the rad tools.

Thanks.

[Rumen]

Hi Ian,

Please, make sure that you are using the latest official build 2011.2 915 of RadControls for ASP.NET AJAX.
For your convenience I have attached a sample runnable project that works as expected on my end.
Here is a video demonstrating my test: http://screencast.com/t/3PGquskXYzyS.

Best wishes,
Rumen
the Telerik team