Tracing an exception

I've had this exception logged in my system:

System.InvalidOperationException: Object is currently in use elsewhere.
   at System.Drawing.Image.get_Width()
   at System.Drawing.Image.get_Size()
   at
System.Windows.Forms.PictureBox.ImageRectangleFromSizeMode(PictureBoxSiz
eMode mode)
   at System.Windows.Forms.PictureBox.get_ImageRectangle()
   at System.Windows.Forms.PictureBox.OnPaint(PaintEventArgs pe)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs
e, Int16 layer, Boolean disposeEventArgs)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   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)

As you can see, none of it is my code - so any ideas on how I go about
tracing what's causing it?

Dino

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