UPDATE: After running the above setup for a while all was good. Then yesterday I booted up and the freeze occurred again. I explained in another thread that I purchased MBAM Pro on December 24th and immediately started having freezes, but didn't install Avast!5 on my system that never had Avast! on it until January 20th. So Avast isn't the cause. I have reverted MBAM to its previous on demand status, and re- established SAS as my real time Anti-spyware. No hangs to date and the system is running snappier. We'll see in time how this setup works.