Thanks, Happylab. Mine just locked up on me on the 3rd pass, but not the other passes. I will try turning everything off when I hopefully get this top finished. Yesterday I did FM so I didn't use the prostitcher except to run the machine. I always turn off and unplug the machine from the surge protector when not in use. And I don't run it during stormy weather. I do know it is something in the upgrade because it didn't do this before.