I’m testig this version and my PC freeze and slow down.I’m editing translations bugs with translator tool and my PC is like a coffee-pot 
Now it is very slow :-
Im’ using Avast 4.7 home edition. The last stable verion(2.3.6.81) with Avast runs very smoothly.
If I set the alert frequency level to very low during the setup wizard later in the options it will be set to low.
I solved this problem.
Thanks a lot.