Out of memory error

I had a copy of NCoverExplorer open and had refreshed it several dozen times over the course of the past couple of days. I received an Out of Memory error (which I did not capture) when I did another refresh. I then hit the refresh button again and got this:

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NCoverExplorer 1.3.5.1750 Error
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An unexpected error has occurred in NCoverExplorer 1.3.5.1750.
Framework loaded: 2.0.50727.42
Operating system: Microsoft Windows NT 5.2.3790 Service Pack 1
If you are able to replicate it please send an e-mail to:
support@ncoverexplorer.org

Alternatively post it in the NCoverExplorer forums at:
http://ncover.org/SITE/forums/default.aspx

(You can copy and paste the text from the dialog using Ctrl+C)

System.NullReferenceException: Object reference not set to an instance of an object.
   at NCoverExplorer.Core.Presentation.SelectionStateManager.SetSelectionForCaretPosition(ClassTreeNode lastSelectedClassNode, SourceCodeTabControl sourceCodeTabControl)
   at NCoverExplorer.Core.Presentation.MainForm._SaveCurrentSelection()
   at NCoverExplorer.Core.Presentation.MainForm._HandleReloadCoverageXmlFileRequest()
   at NCoverExplorer.Core.Presentation.MainForm._OnReloadButtonClick(Object sender, EventArgs e)
   at System.Windows.Forms.CommandBarControl.OnClick(EventArgs e)
   at System.Windows.Forms.CommandBarControl.PerformClick(EventArgs e)
   at System.Windows.Forms.CommandBar.PerformClick(CommandBarItem item)
   at System.Windows.Forms.CommandBar.WndProc(Message& message)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
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OK
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- Mark