Should I be worried?

I have just upgraded my OS from Vista to Windows 8 & now, having tried several times(& failed)to upgrade to Windows 8.1, it seems that Norton 360 isn't scanning - or at least showing it has scanned - downloaded programs as it did before...

It has detected a couple threats since I reinstalled it - for a second time - but for years I've been used to the prompts & now they are gone...

Should I be worried?

Is this supposed to happen? 

Have I accedentally switched something(which I've tried & tried to find)off?

I got a 'hotfix' today & I understand that such things change the way things happen(from gaming developers), so, y-know, it  could be a new thing...

Let me know please...

Thanks...

Oh - & for some strange reason - I have 3 Norton 360 icons in my task bar... #Weird