I have just upgraded to NSM 4.1.0. so far the only problem i see is running a GSR Collector. I was getting a database query error (DB_Constraint_violation).
The product scans AD finds 15000 items then gives me a the Db error.

I then started and stopped services and bounced server. now i get " A C++ or O.S. exception occurred and was converted to an error.(Exception)