I am trying to persist user-initiated column settings, specifically moved columns and column resizing. The file I specify in code is written to the proper location, but either the settings are not being saved in the file or the settings are not being loaded from the file. Any help would be greatly appreciated.  I have even tried running a number of samples posted to this forum by replacing the refrences with version 13.2, but even the samples won't persist the settings.  Here is the relevant code from my project:

XAML:

<ig:XamGrid.ColumnMovingSettings>
  <ig:ColumnMovingSettings AllowColumnMoving="Indicator"/>
</ig:XamGrid.ColumnMovingSettings>

<ig:PersistenceManager.Settings>
 <ig:PersistenceSettings SavePersistenceOptions="OnlySpecified" LoadPersistenceOptions="AllButIgnored">
  <ig:PersistenceSettings.PropertySettings>
   <ig:PropertyNamePersistenceInfo PropertyName="ColumnResizingSettings"/>
   <ig:PropertyNamePersistenceInfo PropertyName="ColumnMovingSettings"/>
  </ig:PersistenceSettings.PropertySettings>
 </ig:PersistenceSettings>
</ig:PersistenceManager.Settings>

CODE-BEHIND

#region ' Test Persistence'

private const string FILE_GRIDSETTINGS = "grid_settings.xml";

void MyWorkQueue_Loaded(object sender, RoutedEventArgs e)
{  LoadGridSettings(grid, FILE_GRIDSETTINGS); }

public void SaveSettings()
{  SaveGridSettings(GridWorkQueue, FILE_GRIDSETTINGS); }

private void SaveGridSettings(DependencyObject grid, string fileName)
{
 MemoryStream memoryStream = PersistenceManager.Save(grid);

 using (IsolatedStorageFile iso = IsolatedStorageFile.GetUserStoreForApplication())
 {
  if (iso.FileExists(fileName))
   iso.DeleteFile(fileName);

  using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(fileName, FileMode.OpenOrCreate, iso))
  {    stream.Write(memoryStream.ToArray(), 0, (int)memoryStream.Length);   }  } }

private void LoadGridSettings(DependencyObject grid, string fileName)
{
 using (IsolatedStorageFile iso = IsolatedStorageFile.GetUserStoreForApplication())
 {   if (iso.FileExists(fileName))
  {    using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(fileName, FileMode.OpenOrCreate, iso))
   {     PersistenceManager.Load(grid, stream);    }   }  } }

private void GridWorkQueue_ColumnDropped(object sender, Infragistics.Controls.Grids.ColumnDroppedEventArgs e)
{  SaveSettings(); }

#endregion

Any help of suggestions would be greatly appreciated.