When my computer awakes from a little nap, this is what i sometimes see http://i.imgur.com/aN1cB8J.png
Maybe a ==0 check should be a <=0 ? 
When my computer awakes from a little nap, this is what i sometimes see http://i.imgur.com/aN1cB8J.png
Maybe a ==0 check should be a <=0 ?