I want to set my own .dict file to the spell checker but it doesn't seem to want to take it.  For the sake of testing I've copied over the english-generic-whole.dict file from installed Infragistics silverlight directory and put it into a folder called Dictionaries within my project.  I've tried assigning the dictionary file to the "DictionaryUri" but when ran and invoking the spell check a popup message popups up stating that it is loading the dictionary file the disappaires as fast as it showed up.  Then I tried setting the "UserDictionaryUri" to the file but nothing happens when invoking the spell checker. 

Setup:

I've created a new silverlight project using web application to host the silverlight app.  In the silverlight app there are the default directories that it creates when creating a new project.  I've added the "Dictionaries" folder into the project.  In that folder I've copied over the "english-generic-whole.dict" dictionary file from "C:\Program Files (x86)\Infragistics\NetAdvantage for .NET 2009.1\Silverlight\Dictionaries" (Vista 64-bit).  Below is my xaml and code behind code for the MainPage.xaml that I used to test.

XAML:

<UserControl x:Class="SpellChecker.MainPage"
 xmlns:igSpell="clr-namespace:Infragistics.Silverlight.Controls;assembly=Infragistics.Silverlight.XamWebSpellChecker.v9.1"
 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
 xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 mc:Ignorable="d"
 d:DesignWidth="640"
 d:DesignHeight="480">
 <Grid x:Name="LayoutRoot">
  <StackPanel>
   <Button x:Name="RunSpellCheck" Content="Button" Click="RunSpellCheck_Click"/>
   <TextBox x:Name="txtValue" Text="TextBox" TextWrapping="Wrap" Margin="0" d:LayoutOverrides="Width"/>
   <igSpell:XamWebSpellChecker x:Name="ucSpellChecker" Margin="0" DictionaryUri="Dictionaries/english-generic-whole.dict">
    <igSpell:XamWebSpellChecker.SpellCheckTargets>
     <Binding ElementName="txtValue" Path="Text" Mode="TwoWay" />
    </igSpell:XamWebSpellChecker.SpellCheckTargets>
   </igSpell:XamWebSpellChecker>
  </StackPanel>
 </Grid>
</UserControl>

Code Behind:

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SpellChecker
{
 public partial class MainPage : UserControl
 {
  public MainPage()
  {
   // Required to initialize variables
   InitializeComponent();
  }

  private void RunSpellCheck_Click(object sender, System.Windows.RoutedEventArgs e)
  {
   ucSpellChecker.SpellCheck();
  }
 }
}