--- MongoConnection.cs.orig	Thu Apr 28 10:01:28 2011
+++ MongoConnection.cs	Sat Apr 30 22:18:10 2011
@@ -412,6 +412,8 @@
                     serverInstance.Disconnect();
                 } catch { } // ignore any further exceptions
             }
+            if (ex is IOException)
+                throw new MongoConnectionException("A message I/O error has occured", ex);
         }
         #endregion